find the value of x and y if y-2x=3 and x+y=3​

Answer: 122

Step-by-step explanation:

Since it is a geometric sequence, lets see the pattern below:

From this, we can see that we multiply each number by -3 to get the next number.

Before we find the sum, we first find the next number.

-54×-3=162

So the whole sequence will be: 2, -6, 18, -54, 162

Find the sum

 2+(-6)+18+(-54)+162

=2-6+18-54+162

=-4-36+162

=-40+162

=122

Hope this helps!! :)

Please let me know if you have any question

Answer:

1.625

Step-by-step explanation:

The decimal of 5/8 is 0.625.

We can then add 1 to it, since it is a whole number

Therefore, we have 1 + 0.625 = 1.625

Answer:

[tex] \boxed{ \bold{ \huge{\boxed{ \sf{1.625}}}}}[/tex]

Step-by-step explanation:

[tex] \sf{1 \frac{5}{8} }[/tex]

Convert the mixed number to an improper fraction

⇒[tex] \sf{ \frac{8\times 1 + 5}{8} }[/tex]

⇒[tex] \sf{ \frac{8 + 5}{8} }[/tex]

⇒[tex] \sf{ \frac{13}{8} }[/tex]

Divide 13 by 8

⇒[tex] \sf{1.625}[/tex]

Hope I helped!

Best regards! :D

Answer:

a). Fixed cost = $800

b). The cost for 25 items is $1050

c).Range = 150

Domain g(x) = 150

Step-by-step explanation:

The cost in dollars of making x item is given by the function C(x)=10x+800.

The fixed cost is when x= 0

Fixed cost

C(0)= 10(0) +800

C(0) = 0+800

C(0)= 800

Fixed cost = $800

The cost for 25 items

C(25) = 10(25)+800

C(25) = 250+800

C(25) = 1050

The cost for 25 items is $1050

If Maximum cost=$2300

C(x)=10(x) +800= 2300

Range of x

10(x) = 2300-800

10(x) = 1500

X= 1500/10

X= 150

Range = 150

Domain g(x) = 150

Answer:

Let x be the unknown no.

Now,

[tex]x + ( - 79) = - 59 \\ ⟶ x = - 59 + 79 \\ ⟶ x = 20[/tex]

.°. x= 20

Hence, 20 should be added to -79 to get -59

Step-by-step explanation:

[tex]\huge\underline\bold\blue{ƛƝƧƜЄƦ}[/tex]

[tex]\huge\underline\bold\red{Given}[/tex]

Let the number be x

Acc to question.

[tex]\rightarrow[/tex]x+(-59) = -79

[tex]\rightarrow[/tex]x. = -79 + 59

[tex]\rightarrow[/tex]x. = 20

[tex]\huge\boxed{x = 20}[/tex]

Hope it helps

# verified

20 cups

4 rows of 5 containing the 3 inch cups and 5 columns of 4 containing the 3 inch cups

Hey There!! ~

The answer to this is: 60 cups. Because, First you need to find the area of the box which would be

12in x 15in =180in

The second step would be to divide the area of the box by how tall the cups are .

180/3 = 60

Hope It Helped!~

[tex]ItsNobody[/tex]~                                                                                                                  (`~*>.^UwU^.<`~*)

Answer: $64

Step-by-step explanation:

Let x be the amount of money he had before buying the video game

Given, 3/4 of x = 48

By cross-multiplying,

x = 64

Answer:

64

Step-by-step explanation: edge 2020

Answer:

[tex]\frac{8}{15}[/tex]

Step-by-step explanation:

Therefore, the answer is [tex]\frac{8}{15}[/tex].

Answer:  C

Step-by-step explanation:

In order to be a function, you canNOT have any duplicate x's.

A) x = -2, 6, 6, 10      --> 6 is used twice so it is not a function

B) x = -2, 10, 6, 10    --> 10 is used twice so it is not a function

C) x = -2, 1, 6, 10      --> all the x's are different.  This is a function!!!

D) x = -2, 1, 6, 1        --> 1 is used twice so it is not a function

Answer:

C

Step-by-step explanation:

Relationship between independent variable and dependent variable: each x corresponds to only one y, but y can each correspond to multiple x (which is why there are multiple solutions of an equation, and a solution can only launch a counter-argument )

A, 6 -> - 3,22.6 (x) corresponding to the two y. C options and only one for each of x y.

Answer:

Step-by-step explanation:

This is an algebraic question type where we express the identity of each number using exactly four 4s method order of operation.

So, Expression using four 4s.

1   =  (4 ÷ 4) ÷ (4 ÷ 4)

2 = ( 4 ÷ 4 ) + ( 4 ÷ 4)

3  = ( 4 + 4 + 4 ) ÷ 4

4  = 4 + 4 ( 4 - 4 )

5  = ((4 × 4) +4) ÷ 4

6  = 4 +( (4+4) ÷ 4)

7 = (4+4) - ( 4 ÷ 4 )

8  = (4 × 4) - 4 - 4

9  = 4 + 4 + ( 4 ÷ 4)

10 = ( 44 - 4 ) ÷ 4

Answer:

1 = (4÷4) + (4-4)

2= (4-4)+(4-

√4)

3= (4+4+4)÷4

4= (√4+√4)+(4 - 4)

5= (4+√4)-(4÷4)

6= (4-4)+(4+√4)

7= (4+4)+(4÷4)

8= (4*√4)-(4 - 4)

9= (4+4)+(4÷4)

10=(4 -√4)+(4*√4)

Step-by-step explanation:

The

√4 = 2 and that helps to most of the equations

Answer:

21 ÷7 =3

3 x 4 =12

aye 12 globos azules

Answer:

x = -7

Step-by-step explanation:

4 ( 2x+14) =0

Divide by 4

2x+14 = 0

Subtract 14 from each side

2x = -14

Divide by 2

2x/2 = -14/2

x = -7

Answer:

x = -7

Step-by-step explanation:

Therefore, x is equals -7.

Answer:

i think its a

Step-by-step explanation:

its A

Answer:A

Step-by-step explanation:

Answer:

It will take ≈5 hours (5.278)

Step-by-step explanation:

First we need to find how many number she counts in one hour. We know she counts 60 every one minute and there are 60 minutes in an hour. 60x60=3600

Now we divide 19,000 by 3600 to find how many hours it will take

19000/3600=5.278

It will take ≈5 hours (5.278)

Answer: 3/4 is greater

Step-by-step explanation:

3/4 and 11/16

#1 change to same denominator

the LCM (least common multiple) of 4 and 16 is 16

12/16 and 11/16

#2 compare numerator

12 > 11

this means 12/16>11/16

12/16=3/4, 3/4 is greater

Respuesta: Es más probable sacar un mango.

Explicación:

La probabilidad se refiere a la posibilidad de que un evento occura y no otro. En el caso que se describe, la probabilidad de sacar cada fruta puede ser calculada dividiendo el total de cada fruta en el número de frutas totales:

Probabilidad de sacar un mango:

[tex]\frac{cantidad de mangos}{cantidad de frutas en la canasta}[/tex] =  [tex]\frac{30}{50}[/tex]  =[tex]0.6[/tex]

Probabilidad de sacar una piña:

[tex]\frac{cantidad de pinas}{cantidad de frutas en la canasta} = \frac{20}{50}[/tex] [tex]= 0.4[/tex]

De acuerdo a lo anterior la probabilidad de sacar un mango es de 0.6 o de 60% (multiplica la probabilidad por 100 para saber su equivalente en porcentaje), mientras que la probabilidad de sacar un mango es de 0.4 o 40% lo cual es mucho más bajo. Es decir que es más probable sacar un mango.

Answer: 47.5

Step-by-step explanation:

Given

2x-10+x+x=180

combine like term x      

       4x-10=180

addition property of equality (add 10 on both sides)

             4x=190

division property (divide 4 on both sides)

               x=47.5

Hope this helps!! :)

Please let me know if you have any question or need any further explanation

Answer:

your answer will be 47.5

Answer:

The answer is below

Step-by-step explanation:

1) $6.00 to 95 cents

$1 = 100 cents

[tex]\$6.00=\$6.00*\frac{100\ cent}{\$} =600\ cent\\\\\$6\ to\ 95\ cent=\frac{\$6}{95\ cent} = \frac{600\ cent}{95\ cent} = 6.32\ to\ 2\ decimal\ places[/tex]

2) 3 hours to 35 minutes

1 hour = 60 minutes

[tex]3\ hr=3\ hr*\frac{60\ minute}{1\ hr} =180\ minte\\\\3\ hr\ to\ 35\ minute=\frac{3\ hr}{35\ minute} = \frac{180\ minute}{35\ minute} = 5.14\ to\ 2\ decimal\ places[/tex]

3) 42 inches to 2 feet

1 inches = 0.0833 ft

[tex]42\ inch=42\ inch*\frac{0.0833\ feet}{1\ inch} =3.5\ feet\\\\42\ inch\ to\ 2\ feet=\frac{42\ inch}{2\ feet} = \frac{3.5\ feet}{2\ feet} = 1.75\ to\ 2\ decimal\ places[/tex]

Answer:

[tex] {x}^{2} + 3x[/tex]

Step-by-step explanation:

1.

Area of shaded region = Area of external rectangle - Area of internal rectangle

[tex] = 4x(x + 2) - x(3x + 5) \\ = 4 {x}^{2} + 8x - 3 {x}^{2} - 5x \\ = 4 {x}^{2} - 3 {x}^{2} + 8x - 5x \\ = {x}^{2} + 3x \\ [/tex]

2.

Let the width of the rectangle be x inches.

Therefore, length of the rectangle = (x + 3) inches

A.

Area of rectangle

[tex] =(x + 3)\times x\\

=x^2 + 3x\\[/tex]

B.

Width of rectangle = 4 inches

Length of rectangle = 4 + 3 = 7 inches

Area of rectangle = 7*4 = 28 square inches.

Ryan has 130 pages left to read (150 − 20).

He read 20 pages in 30 minutes, which means he read at a rate of 40 pages per 1 hour.

To find out how much longer it will take him to finish the assignment, divide the total number of pages remaining (130) by the number of pages he is able to read per hour (40):

Ryan spent 30 minutes reading, so he will need 225 - 30 = 195 minutes to finish reading.

Here's the solution:

If it took Ryan 30 minutes to read 20 pages, then it will take him 30/20 = 1.5 minutes to read 1 page.

To read 150 pages, it will take him 1.5 × 150 = 225 minutes.

He already spent 30 minutes reading, so he will need 225 - 30 = 195 minutes to finish reading.

So the answer is 195

Learn more about reading here: brainly.com/question/33472628

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Answer:

✔ inverses

✔ (y, x)

Step-by-step explanation:

The tables show that the two functions are inverses because the ordered pair (x, y) for one function is the ordered pair (y, x) for the other function.

Permit f be a characteristic. If any horizontal line intersects the graph of f more than as soon as, then f does now not have an inverse. If no horizontal line intersects the graph of f extra than once, then f does have an inverse.

No longer do all capabilities have inverses. people who do are known as "inverse." learn the way we can tell whether or not a function is inverse or now not. Inverse functions, inside the maximum preferred sense, are features that "reverse" every difference.

Learn more about Inverse functions here: brainly.com/question/14796161

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Answer:

  16x^2 -48xy^3 +36y^6

Step-by-step explanation:

Use FOIL or the distributive property or the form of the square of a binomial to expand the square.

  (4x -6y^3)(4x -6y^3) = 4x(4x -6y^3) -6y^3(4x -6y^3)

  = (4x)^2 -(4x)(6y^3) -(6y^3)(4x) +(6y^3)^2

  = 16x^2 -48xy^3 +36y^6

_____

The form referred to above is ...

  (a +b)^2 = a^2 +2ab +b^2

Answer:  51,349 feet

Step-by-step explanation:

[tex]\tan \theta=\dfrac{opposite}{adjacent}\\\\\\\tan 16^o=\dfrac{14750}{x}\\\\\\.\qquad x=\dfrac{14750}{\tan 16^o}\\\\\\.\qquad x=\large\boxed{51439}[/tex]

Answer:

The number of hours it takes the culture to reach 12,000 bacteria is 41 hours.

Step-by-step explanation:

To predict the number of hours it takes to culture a certain number of bacteria form a regression equation of number of hours (y) based on the number of bacteria (x) using the provided data.

The general form of the regression equation is:

[tex]y=a+bx[/tex]

Compute the values of a and b as follows:

[tex]a=\frac{\sum Y\cdot\sum X^{2}-\sum X\cdot\sum XY}{n\cdot \sum X^{2}-(\sum X)^{2}}=\frac{15\cdot 32109075 - 12565\cdot 39860}{5\cdot 32109075-(12565)^{2}}=-7.203\\\\b=\frac{n\cdot \sum XY-\sum X\cdot\sum Y}{n\cdot \sum X^{2}-(\sum X)^{2}}=\frac{5\cdot 39860- 12565\cdot 15}{5\cdot 32109075-(12565)^{2}}=0.004[/tex]

*Use the Excel data sheet attached.

The regression equation of number of hours based on the number of bacteria is:

[tex]y=-7.203+0.004x[/tex]

Compute the number of hours it takes the culture to reach 12,000 bacteria as follows:

[tex]y=-7.203+0.004x[/tex]

   [tex]=-7.203+(0.004\times 12000)\\=-7.203+48\\=40.797\\\approx 41[/tex]

Thus, the number of hours it takes the culture to reach 12,000 bacteria is 41 hours.

Answer:  C. quadrilateral

Step-by-step explanation:

Trapezoid means one side must be parallel, which does not exist in the image so A & D are ruled out.

Parallelogram means opposite sides are parallel which does not exist in this image so B is ruled out.

Quadrilateral means that the object contains 4 sides, which the image does so the answer is C.

Answer:

1,080 ft

Step-by-step explanation:

Rate of descending or travel (r) = 18 ft per second.

The depth or distance traveled/descended (d) after 1 minute can be calculated as follows:

[tex] d = r*t [/tex]

r = 18ft/sec

t = 1 min = 60 secs

[tex] d = \frac{18 ft}{1 sec}*60secs [/tex]

[tex] d = 18ft*60 [/tex]

[tex] d = 1,080 ft [/tex]

Answer:

1 dozen = 12 calculators

8 dozen = 12 * 8 = 96 calculators

2 dozen = 12 * 2 = 24 calculators

96 - 24 = 72 calculators

*each was sold for $9.99 so:

72 * $9.99 = $719.28 which rounds to $719

hope this is correct.

Answer:

Total distance covered each week is [tex]11\frac{1}{4}\ miles[/tex]

Step-by-step explanation:

Given

Days = 5 days

Distance = [tex]2\frac{1}{4}[/tex] miles

Required

Determine the total distance covered in a week

To do this, we simply multiply distance by number of days.

[tex]Total\ distance = distance * days[/tex]

[tex]Total\ distance = 2\frac{1}{4} * 5[/tex]

Convert to improper fraction

[tex]Total\ distance = \frac{9}{4} * 5[/tex]

[tex]Total\ distance = \frac{9 * 5}{4}[/tex]

[tex]Total\ distance = \frac{45}{4}[/tex]

[tex]Total\ distance = 11\frac{1}{4}[/tex]

Hence, the total distance covered each week is [tex]11\frac{1}{4}\ miles[/tex]

Answer:

the answer is a

Step-by-step explanation:

1 step -a

2- a

Answer:

1/12

Step-by-step explanation:

4 fruitcakes=4/12 cups of flour

I fruitcake =x cups of flour

4x=4/12

48x=4

x=4/48

x=1/12

Answer:

z = - 0.02

Step-by-step explanation:

0.3 = -15z

0.3 / -15 = z

-0.02 = z

Answer:

Z= - 0.02

Step-by-step explanation:

0.3=-15 *Z

Z= 0.3 / - 15

Z= - 0.02

Answer:

Step-by-step explanation:

[tex]\frac{\sqrt{32} }{\sqrt{16} - \sqrt{2} } = \frac{4\sqrt{2} }{4 - \sqrt{2} } ----------------- (1)[/tex]

It says it can be written in the form of

[tex]\frac{A\sqrt{B} + C }{D}[/tex]

where A, B, C and D are integers, D is positive and B is not divisible by square of any prime

Rationalize equation 1:

[tex]\frac{4\sqrt{2} }{4 - \sqrt{2} } X \frac{4 + \sqrt{2} }{4 + \sqrt{2}}[/tex]

in denominator, use (a + b)(a - b) = [tex]a^{2} - b^{2}[/tex]

After multiplying numerator and denominator you should get

[tex]\frac{16\sqrt{2} + 8}{14}[/tex]

this is in the form

[tex]\frac{A\sqrt{B} + C }{D}[/tex]

where A = 16, B = 2, C = 8, and D = 14

hope this helps you ^^