9x +11y = 2
3x + 4у = 4

Answers

Answer 1

Answer: (-12, 10)

Step-by-step explanation:

I will assume that you want to solve for x and y

9x + 11y = 2      (1)

3x + 4y = 4       (2)

Multiply (2) by 3:

9x + 12y = 12      (3)

Do (3) - (1):

y = 10

x = -12

(x, y) = (-12, 10)


Related Questions

Light travels about `180000000` kilometers in `10` minutes.

How many kilometers per second?

Answers

Answer: 300000 km per second

Step-by-step explanation:

180000000 km for 10 min

10 min = 600 seconds

180000000/600 = 1800000/6 = 300000 km per second

Answer: 300000 kilometers per second

Step-by-step explanation: if it travels 180000000 in 10 minutes and 19 divided by 10 is 1 minute and a minute divided by 60 is a second than 180000000 divided by 10 than 60 is your answer

Given that 2p=5q, work out the ratio p : q

Answers

Therefore, the ratio of 5:2 is the p:q ratio of 2p=5q. When two quantities are proportionate, one rises and the other follows suit.

what is proportionality ?

Relationships that have the same ratio over time are said to be proportional. For instance, how many trees there are in an orchard and how many apples there are in a harvest of apples are determined by the average number of apples per tree. Proportional in mathematics refers to a linear relationship between two numbers or variables. When the first quantity doubles, so does the other. When one of the variables drops to 1/100th of its previous value, the other also decreases. When two quantities are proportional, it means that when one rises, the other rises as well, and the ratio between the two quantities stays the same at all values.

given

2p=5q

p/q = 5/2

Therefore, the ratio of 5:2 is the p:q ratio of 2p=5q. When two quantities are proportionate, one rises and the other follows suit.

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Find equation of the line that passes through the point a and point b

A=(4,7) B=(
2,3)

Answers

Answer:

y = 2x - 1

Step-by-step explanation:

A = (4,7)

B = (2,3)

Use slope formula [tex]\frac{(y2 - y1)}{(x2 - x1)}[/tex]:

[tex]\frac{3 - 7}{2 - 4}[/tex]

[tex]\frac{-4}{-2}[/tex]

2 is our slope

Solve for b by plugging in both values for either coordinate or A and B. I will use coordinate B for this answer.

y = 2x + b

3 = 2(2) + b

3 = 4 + b

-1 = b

Our final equation is [y = 2x - 1]

A scientist weighs a sample of iron on Scale 1 and weighs a sample of mercury on Scale 2.

Use the drop-down menus to complete the statements about the scales' accuracy.

Answers

The errors on scale 1 and scale 2 are 15% and 6%.

How to find the error?


This talks about how correct a scale is over a time.

The amount of something is expressed as if it is a part of the total which is a hundred. The ratio can be expressed as a fraction of 100. The word percent means per 100. It is represented by the symbol ‘%’.

Scale 1, measured weight = 85, and actual weight = 100.

Scale 2, measured weight = 47, and actual weight = 50.

Error % is given by the formula,

(Actual value - Measured value)/Actual value * 100/1

For scale 1

Measured weight = 85, and actual weight = 100.

Percentage error =(Actual value - Measured value)/Actual value * 100/1

Percentage error = (100-83)/100

Percentage error = 15%

For scale 2

Measured weight = 47, and actual weight = 50.

Measured value)/Actual value * 100/1

Percentage error = (50-47)/50

Percentage error = 6%

Thus the error in scale 1 and scale 2 is 15% and 6%. respectively

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Newton and Descartes have a 70-day summer vacation. They go to camp for 23/70 of their vacation, and they travel for 6/35 of their vacation. They stay home the rest of their vacation. How many weeks do Newton and Descartes spend at home?

Answers

5 weeks do Newton and Descartes spend at home. This can be solved using the concept of fractions.

What is fractions?

In mathematics, the portion or component of the complete item is represented by a fraction. It stands for the equal components of the whole. Both the numerator and denominator are components of a fraction. The top number is referred to as the numerator, while the bottom number is referred to as the denominator.

Given that,

Newton and Descartes have a 70-day summer vacation

They go to camp for 23/70 of their vacation

= 70 × (23/70)

= 23

Next, they travel for 6/35 of their vacation

= 70 × (6/35)

= 12

So, they stay home the rest of their vacation

= 70 - 23 - 12

= 35

Now, they stay home (35 ÷ 7) = 5 weeks.

Therefore, 5 weeks do Newton and Descartes spend at home.

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A bus is 7 meters and 35 centimeters. How long is the bus in millimeters?

Answers

Answer: 7350 mm

Step-by-step explanation:

1 meter = 1000 mm

7 meter = 7000 mm

1 cm = 10 mm

35 cm = 350 mm

7000 mm + 350 mm = 7350 mm

For the following two numbers, find two factors of the first number such that their product is the first number and their sum is the second number. 70, 17

Answers

Answer:

7, 10

Step-by-step explanation:

First, you can list out the factors of 70: 1 x 70

                                                                2 x 35

                                                                5 x 14

                                                                7 x 10

You can immediately see that the only factor pair that adds up to 17 is 7 and 10, so the answer is 7 and 10.

Problem No. 4 300 is divided into 4 parts such that the first integer number is twice the second, three times the third and four times the fourth. What is the value of the largest of these numbers?​

Answers

120, 90, 60, 30

Ratio of 4:3:2:1
1+2+3+4=10
300/10=30
120:90:60:30

The hypotenuse of a right triangle os 13.0 and one leg is 2.0 units shorter than the other. Find the dimensions of the figure (rounded to the nearest tenth).

Answers

Answer:Let, one leg be x units.

since the other leg is 9.0 units shorter than the other,

the measure of the other leg =x-9

hypotenuse =13.0 units

According to Pythagorean theorem, the square of the hypotenuse is equal to the sum of squares of the other two sides.  

x^2 +(x-9)^2 =13^2

x^2 + x^2 -18x +81 = 169

2x^2-18x-88=0

Divide the whole equation by 2

x^2 - 9x -44 =0  

Let's use the quadratic formula to find the roots.

formula: x= [-b ± sqrt(b^2-4*a*c)]/2*a  

a=1 b=-9 c=-44

x= [9±sqrt(81+176)]/2

=[9±sqrt(257)]/2

=[9±16.03]/2

=25.03/2 or -7.03/2

length of a triangle cannot be negative,

Therefore, x=25.03/2 =12.52

one leg =12.5 units

other leg =12.52-9 =3.5 units

Step-by-step explanation:

Use the Pythagorean Theorem
a
2
+
b
2
=
c
2
a
2
+b
2
=c
2
to find the length of the missing side given
b
=
15
b=15 and
c
=
17
c=17.

Answers

Using Pythagoras theorem, the length of the missing side is 16.6 units

What is Pythagorean Theorem

A right-angled triangle's hypotenuse, or side opposite the right angle, has a square length that, according to the Pythagorean theorem, is equal to the sum of the squares of the lengths of the other two sides. Pythagoras, an ancient Greek mathematician, is credited with discovering and proving the theorem, and it bears his name.

The theorem can be written as an equation:

c^2 = a^2 + b^2

where c is the length of the hypotenuse, and a and b are the lengths of the other two sides.

Data;

a = ?b = 15c = 17

Substituting the values and solve for a

a² + b² = c²

17² = a² + 15²

a² = 17² - 15²

a² = 274

a = √274

a = 16.6

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Find the distance between (-2, 6) and (1, 3).

Answers

Answer:

3√2

Step-by-step explanation:

Distance (d) = [tex]\sqrt{((1 - -2)^2 + (3 - 6)^2)}[/tex]

= [tex]\sqrt{((3)^2 + (-3)^2)}[/tex]

= √18

= 3√2

What is 31% of 425??

Answers

131.75 is 31% of 425

16.1 is what percent of 32? Round to the nearest thousandth.

Answers

Answer: 16.1 is 50.312% of 32

Final answer:

16.1 is approximately 50.313% of 32. This is found by creating a ratio of 16.1 to 32, converting that ratio into a percentage, and then rounding to the nearest thousandth.

Explanation:

To find out what percent 16.1 is of 32, we first need to create a ratio.

The ratio will be 16.1/32. We can then convert this ratio into a percentage by multiplying the result by 100. So:

Percentage = (16.1 / 32) x 100

After calculating the above, we will find that 16.1 is approximately 50.313% of 32 when rounded to the nearest thousandth.

To find what percent 16.1 is of 32, you can use the formula:

Percent = (Part / Whole) * 100

In this case, the Part is 16.1 and the Whole is 32. Substitute these values into the formula:

Percent = (16.1 / 32) * 100 = 50.3125%

Rounding to the nearest thousandth, the answer is approximately 50.313%.

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What is the value of x?

Answers

9√3, 30 60 90 triangles have a formula of x, 2x, x√3. the longest side is x√3, the side that has 60 and 90 is x, and the side that connects 60 to 30 is 2x. 18 is 2x, making x=9. since that x is the longest side, it would be 9√3

) Haile Resort opened for business on June 1 with eight air conditioned units

Answers

Resort is located on the shore in of Lake Michigan, near the town of Saugatuck, Michigan.

What is unit?

A unit is a distinct and indivisible quantity or measure used to express a physical quantity or attribute. It is typically used as a standard of comparison for other measurements of the same quantity. Units are used in the measurement of physical quantities such as length, time, mass, temperature, electric current and luminous intensity. Units are also used to express abstract quantities such as velocity, acceleration, and force. In mathematics, units are used to define the magnitude of a quantity.

It offers breathtaking views of the lake and surrounding woodlands.

The resort is open to guests of all ages and offers amenities such as an outdoor pool, hot tub, and private beach. Guests can also enjoy activities such as boating, fishing, biking, and hiking. The resort also offers a variety of dining options, including a full-service restaurant, a bar, and a snack bar.

Haile Resort is the perfect getaway for anyone looking to relax and enjoy nature. The area is known for its tranquil beauty and the resort's amenities and services make it easy to enjoy the outdoors. Whether guests are looking for a romantic getaway, a family vacation, or a quiet weekend away, Haile Resort can provide the perfect escape.

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top angle is 78 and the bottom angle
is 29

Answers

The angle x is in the quadrilateral is an alternate angle and x = 29°, y = 73°, and z = 102°.

How to evaluate for the unknown angles

Angles formed by parallel lines and a transversal as in the quadrilateral can be alternate and are said to be equal

angles x and 29° are alternate angles and

x = 29°

y + x + 78° = 180° {sum of interior angles of a triangle}

y + 29° + 78° = 180°

y + 107° = 180°

y = 180° - 107°

y = 73°

z + 78° = 180° {supplementary angles}

z = 180 - 78°

z = 102°

The measures of angles in the quadrilateral are x = 29°, y = 73°, and z = 102°.

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what is the answer to this equation 7x+13

Answers

What is the whole equation?

HELP IM BEGGING!!!!!

Answers

Answer: 20

Step-by-step explanation: if there is a ratio of 3:2 flowers and there are 12 lilies then 12 divided by the 3 from 3:2 is 4 meaning to find the number of daisies we need to multiply by 4, the 2 from 3:2 is multiplied by 4 which makes it 8 since there are 12 lilies and 8 daisies then 12 + 8 = 20 there are 20 flowers

2n + 3 = -3n + 5n
OK

Answers

2n + 3 = -3n + 5n

= 2n + 3 = 2n

= 3 = 0

= ø

The answer is 0 if you really look at it and break it down

$4 MATHS BUSINESS MATHS EXERCISE A radio whose cash price is Shs 180,000 can also be bought on hire purchase paying a deposit of 35% of the cash value followed by 6 equal monthly instalments of Shs 24,500. Find the () hire purchase price of the radio () extra amount paid over the cash price using hire purchase​

Answers

The extra amount paid is 30000 where total amount paid is 210000 where as the the actual amount be 180000 .

What is percentage?

percentage can be defined as the product of ratio of given value , total value and hundred.

Given ,

A radio whose cash price is 180,000 can also be bought on hire purchase paying a deposit of 35% of the cash value followed by 6 equal monthly instalments of  24,500

The 35% of 180,000 = 35/100  *  180000

= 63000

So, the amount to paid over 6 months of 24500

amount could be = 6 * 24500

= 147000

So, the total amount paid  = 63000 + 147000

= 2, 10, 000

The total amount paid is 210000 where as the the actual amount be 180000  which is paid more that is 30000

Hence, The extra amount paid is 30000 where total amount paid is 210000 where as the the actual amount be 180000 .

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NO LINKS!! Use the diagram to name each of the following pairs of angles. If the name doesn't exist, say "none". Part 2

f. <1 and <6
g. <2 and <3
h. <7 and <16
i. <2 and <10
j. <7 and <13

Answers

Answer:

f)  Same-side exterior angles

g)  Vertical angles

h)  None

i)  Corresponding angles

j)  Same-side interior angles

Step-by-step explanation:

Part f∠1 and ∠6 are same-side exterior angles.

Same-side exterior angles

When two lines are intersected by a transversal, the angles that are exterior to the two lines and on the same side of the transversal line are called "same-side exterior angles".

Part g∠2 and ∠3 are vertical angles.

Vertical angles

When two straight lines intersect, two pairs of opposite vertical angles are formed.

Part h∠2 and ∠3 - None

Part i∠2 and ∠10 are corresponding angles.

Corresponding angles

When two lines are intersected by a transversal, the angles that are in the same relative position are called "corresponding angles".

Part j∠7 and ∠13 are same-side interior angles.

Same-side interior angles

When two lines are intersected by a transversal, the angles that are interior to the two lines and on the same side of the transversal line are called "same-side interior angles".

solve: −53x+0.5x=−14−38.5

Answers

Answer: x=1

Step-by-step explanation:

Add\:similar\:elements:-53x+0.5x=-52.5x

Subtract\:the\:numbers:-14-38.5=-52.5

Multiply\:both\:sides\:by 10

Refine

Divide\:both\:sides\:by -525

Simplify

x=1

PLease help
On a map with a scale of 1 in = 30 mi , the distance between Norsville and Cheertown is 4 1/2 in What is the actual distance, to the nearest mile, between the towns?
A) 105 mi
B) 135 mi
C) 112 mi
D) 156 mi

Answers

If on a map with a scale of 1 in = 30 mi , the distance between Norsville and Cheertown is 4 1/2 in . The actual distance, to the nearest mile, between the town is B) 135 mi.

How to find the actual distance?

Using this formula to find the  the actual distance, to the nearest mile, between the towns

Actual distance = Scale of 1 in × Cheertown

Where:

Scale of 1 in =30 mi

Cheertown = 4 1/2 or 4.5

Let plug in the formula

Actual distance = 30 mi × 4.5

Actual distance = 135 mi

Therefore we can conclude that the correct option is B.

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Answer:

B

Step-by-step explanation:

someone please help me I am stuck on these 2 questions ​

Answers

…………………………………Answer:

Step-by-step explanation:

(x-3)^2= -3
ANSWER BY FINDING THE SQUARE ROOT PROPERTY?

Answers

Given the problem:
(x-3)^2 = -3
***Find by square root
First step, square root both sides (don’t forget the plus and minus sign!):
x-3 = ±√(3)i
***what’s in parenthesis is what’s under the square root. So “i” is not!!
Next, separate the plus and minus:
x-3 = √(3)i
x-3 = -√(3)i
Next, add 3 to both sides to get x alone:
x=3+√(3)i
x=3-√(3)i
These are your two solutions!
Hope this helped!

(Laplace transform)
Use the convolution property to solve
(18s)/(s^2+36)^2​

Answers

[tex]\dfrac{1}{2a}t \ \text{sin} \ \text{at}[/tex] is the solution of (18s)/(s²+36)²​ using convolution property.

What is convolution property?

Convolution is a mathematical operation on two functions (f and g) that results in a third function (f×g) that expresses how the shape of one is altered by the other. It is a mathematical operation on two functions (f and g) in mathematics, more specifically in functional analysis.

Convolution is a term that describes both the method of computing a function and its result. Its definition states that it is the integral of the product of the two functions after one of them has been shifted and reflected about the y-axis. The result of the integral remains unchanged regardless of which function is chosen to be reflected and shifted before it (see commutativity). The convolution function is created by evaluating the integral across all shift values.

[tex]\begin{aligned}& =\frac{1}{a} \int_0^t \cos a u \sin a(\mathrm{t}-\mathrm{u}) \mathrm{du} \\& =\frac{1}{a} \int_0^t[\cos a u \sin (a \mathrm{t}-a u)] \mathrm{du} \\& =\frac{1}{a} \int_0^t\left[\frac{\sin (a \mathrm{t}-a u+a u)+\sin (a \mathrm{t}-a u-a u)}{2}\right] \mathrm{du} \\& =\frac{1}{2 a} \int_0^t[\sin (a \mathrm{t})+\sin a(\mathrm{t}-2 u)] \mathrm{du} \\& =\frac{1}{2 a} \int_0^t[\sin (a \mathrm{t})+\sin a(\mathrm{t}-2 u)] \mathrm{du} \\\end{aligned}[/tex]

[tex]\begin{aligned}\\& =\frac{1}{2 a}\left[(\sin \mathrm{at}) \mathrm{u}+\left(\frac{-\cos a(\mathrm{t}-2 \mathrm{u})}{-2 a}\right)\right]_0^t \\& =\frac{1}{2 a}\left[(\sin a t) \mathrm{u}+\frac{\cos a(\mathrm{t}-2 \mathrm{u})}{2 a}\right]_0^t \\& =\frac{1}{2 a}\left[t \sin \mathrm{at}+\left(\frac{\cos a t}{2 a}\right)-\left(0+\frac{\cos a t}{2 a}\right)\right] \\& \therefore L^{-1}\left[\frac{s}{\left(\mathrm{~s}^2+\mathrm{a}^2\right)^2}\right]=\frac{1}{2 a} t \sin \mathrm{at}\end{aligned}[/tex]

Thus, [tex]\dfrac{1}{2a}t \ \text{sin} \ \text{at}[/tex] is the solution of (18s)/(s²+36)²​ using convolution property.

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The function f(x) = 9x + 27 represents the distance in miles a drone flew. The function g(x) = x + 3 represents the time the drone flew in hours. Part A: Find f(4) and g(4). Show your work. (2 points) Part B: Find f divided by g of 4. Show your work. (2 points) Part C: What is the domain of f divided by g of x? (2 points)

Answers

Answer: A. Part A:

f(4) = 9x + 27 = 9(4) + 27 = 36 + 27 = 63

g(4) = x + 3 = 4 + 3 = 7

B. Part B:

f(x) / g(x) = (9x + 27) / (x + 3) = 9

f(4) / g(4) = 63 / 7 = 9

C. Part C:

The domain of f(x) / g(x) is all real numbers except x = -3, because dividing by zero is undefined. The domain of f(x) / g(x) is all real numbers except x = -3.

Step-by-step explanation:

Answer:

Step-by-step explanation:

Part A: f(4) = 63, and g(4) = 7.

My work for Part A:

Step 1: Write the first function substituting x for 3: f(4) = 9 x 4 + 27.

Step 2: Solve the function: f(4) = 9 x 4 = 36, and 36 + 27 = 63.

Step 3: Write the final answer for the first function: f(4) = 63.

Step 4: Write the second function substituting x for 3: g(4) = 4 + 3.

Step 5: Solve the function: g(4) = 4 + 3 = 7.

Step 6: Write the final answer for the second function: g(4) = 7.

Part B: (f/g)(4) = 9.

My work for Part B:

Step 1: Using the numbers from Part A, simply divide f(4) by g(4) to get (f/g)(4): 63/7 = 9.

Step 2: Write the final answer of (f/g)(4): (f/g)(4) = 9.

Part C: The domain of (f/g)(x) is -3 < x ≤ ∞. So, any numbers greater than -3 and less than or equal to infinity, are possible solutions to this function. Therefore, -2, 3, 7, and many more numbers greater than -3 are possible solutions.

Diego went to a restaurant, and his dinner bill was $24. He paid a total of $28.32.
Which equation will help find the percent tip (in decimals), x, that Diego gave the server?

Answers

Answer: B. 24 - 24 x r = 4.32

Step-by-step explanation:

The percent tip can be found by using the formula: tip = bill x (tip percentage in decimal form)

In this case, Diego's bill was $24 and the tip he paid was $4.32. To find the tip percentage, we can divide the tip by the bill:

tip / bill = 4.32 / 24 = 0.18

To convert the decimal to a percentage, we can multiply the decimal by 100: 0.18 x 100 = 18%

The tip percentage is 18%

So, option B. 24 - 24 x r = 4.32 is the equation that will help find the percent tip that Diego gave the server.

One side of a square is 33 inches long. The area of the square is _ square inches.

Answers

The area of the square is 1084 square inches.

What is the area of a square?

The area of a square can be calculated as the square of the sides of a given figure. A square is always a rectangle, parallelogram, a rhombus and a quadrilateral but its reverse statement may or may not be true.(ie it is not always necessary that a rectangle is a square or a parallelogram is a square or a rhombus is a square).

The area of a square = side x side

Given;

One side of square= 33inches

Area of square= A^2

=33x33

=1089

Therefore, the area will be 1089m^2

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solve the equation 3(1/6x + 9) = 1/2x(x-54)

Answers

Solve the equation for  x  by finding a, b, and c of the quadratic then applying the quadratic formula.

Exact Form: x = 55 + √ 3241 2 , 55 − √ 3241 2

Decimal Form: x =

55.96489065… , −0.96489065…

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