The train's speed was= 56.7 miles per hour
What is unitary method?The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units. What can be values and units.Let's say you go to the store to buy six apples. You are informed by the shopkeeper that he is offering 10 apples for Rs 100. In this instance, the value and the units are the price of the apples.Recognizing the units and values is crucial when using the unitary technique to a problem.Always write the items that need to be computed on the right side and the things that are known on the left side to simplify things. We are aware of the quantity of apples and the amount of money in the aforesaid problem.acc to our question-
Entire distance = 210 miles + 130 miles = 340 milesTotal time = 3.5 hours and 2.5 hours = 6 hoursAverage speed = distance/ time = 340 miles/ 6 hours= 56.66666666666 miles per hourRounding to the nearest tenth= 56.7 miles per hourHence, The train's speed was= 56.7 miles per hour
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please help me.
5x + (-y) +8 -6x +9y (Evaluate X=4 and Y=-2)
Answer:
answer: -35
Step-by-step explanation:
if it's not sorry
Answer:
-12
Step-by-step explanation:
5x+(-y)+8-6x+9y
where x=4 and y=-25(4) +(-(2))+8 -6(4) + 9(-2)20+2+8-24-1830-42-12For what value of X is Y= 4 a solution to the equation X-2 =XY+16
Answer:
x = -6
Step-by-step explanation:
x - 2 = x (4) + 16
x - 2 = 4x + 16
4x - x = -2 - 16
3x = -18
3/3 x = -18/3
x = -6
What is the area of the figure at the right 6 in.
7.5 in.
Please HELP
Answer:
B.
Step-by-step explanation:
An equation and the steps to solve it are shown
below:
1
2x - 4 (12x+4)= 3
Step 1: 2x + 3x + 1 = 3
Step 2: 5x+1=3
Step 3: 5x+1-1=3-1
Step 4: 5x = 2
In which step was the error made and why? (1 point)
The error was made in the Step 1 as Distributive property of multiplication was not used correctly .
In the question ,
it is given that
the equation is 2x -(1/4)(12x+4)= 3
Step 1 : by using the distributive property of multiplication ,
we get
2x - (1/4)*12x -(1/4)*4 = 3
2x - 3x - 1 = 3
So , after the first step the equation should be 2x - 3x - 1 = 3
we see that the Distributive property of multiplication , was not used properly as the negative sign was not distributed to both the terms .
So , Step 1 is wrong.
Step 2 : Adding like terms
we get ,
-x - 1 = 3
Step 3 : Adding 1 to both the sides ,
we get
-x - 1 [tex]+[/tex] 1 = 3 + 1
Step 4:
-x = 4
x = -4
Therefore ,The error was made in the Step 1 as Distributive property of multiplication was not used correctly .
The given question is incomplete , the complete question is
An equation and the steps to solve it are shown below:
2x -(1/4)(12x+4)= 3
Step 1: 2x + 3x + 1 = 3
Step 2: 5x+1=3
Step 3: 5x+1-1=3-1
Step 4: 5x = 2
In which step was the error made and why?
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please help!!!!!!!!!!!!!!!
Step-by-step explanation:
the picture is very blurry.
I understand we need the y-intercept in every case and then move the pictures into the empty frames based on sorting these numbers from lowest to highest.
the y-intercept is the point, where a function/curve intersects the y-axis.
in other words, it is the y-value of the point, where x = 0.
so,
1. 0
2. -6
3. looks like -2 (again, very blurry)
4. looks like +2
5. +6
6. +4
sorting these gives us
2. -6 3. -2 1. 0 4. +2 6. +4 5. +6
therefore the 6 frames need to receive the original pictures in that sequence.
ksiodhhhwdaaaaaaaaaaoidjooaaaaaaaaaaaaaaaaaaa
Answer:
vyfyxfrr6c*"8&"; hxh6 byhd,tf7zg5gzyfe55eE4E45w522
Step-by-step explanation:
6dyxg9yyfz6t bztrfr 4.Sabina the tortoise is an 56,123 way of Policy for recharge of the angles and tricks of Policy in order for me and I have a wonderful experience and a
2x^3 + 2
________
x + 3
In long division of polynomials
Answer:
2x^2
__________
x+3 | 3
2x + 2
3
- 2 x - 3
_________
R = - 1
standard automobile license plates in a country display 3 numbers, followed by 2 letters, followed by 2 numbers. how many different standard plates are possible in this system? (assume repetitions of letters and numbers are allowed.) there are different standard plates possible in this system.
The system of standard automotive license plates allows for a variety of standard plates is 39917124 ways.
Define the term permutation?The number of potential arrangements for a given set is assessed mathematical terms, but this procedure is referred to as permutation. The arrangement's order is essential when using permutations.For the stated data;
Standard car license plates in a nation typically have 3 digits, 2 letters, and 2 numbers.
There are total 9 digits (0 - 9).
There are total 26 letter (A - Z)
Repetitions of letters and numbers given allowed.
Thus, numbers and the letters ca be arranged as;
1st place = 9 ways.
2nd place = 9 ways.
3nd place = 9 ways.
4th place = 26 ways.
6th place = 26 ways.
7th place = 9 ways.
8th place = 9 ways.
Total ways = 9×9×9×26×26×9×9
Total ways = 39917124
Thus, the system of standard automotive license plates allows for a variety of standard plates is 39917124 ways.
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Can someone please help me with the following problems
The day which has the least change in temperature is Wednesday.
The two consecutive days which showed a drop in temperature is Wednesday and Thursday.The graph which was easier to read is table graph.Table graph illustrate the data because it clearly shows the data representation.How to read and explain graph?The day which has the least change in temperature can be calculated by finding the change in temperature:
Monday = High temperature - low temperature
= 82° - 58°
= 24°
Tuesday = High temperature - low temperature
= 85° - 60°
= 25°
Wednesday = High temperature - low temperature
= 77° - 62°
= 15°
Thursday = High temperature - low temperature
= 68° - 50°
= 18°
Friday = High temperature - low temperature
= 75° - 48°
= 27°
Saturday = High temperature - low temperature
= 70° - 52°
= 22°
Sunday = High temperature - low temperature
= 84° - 56°
= 28°
The day which has the least change in temperature is Wednesday
Which two consecutive days which showed a drop in temperature: Wednesday and Thursday with 77° and 68° respectively.
Unlike line graph, table graph is the graph that is easier to read.
Therefore, the graph which best illustrate the graph is table graph because it represent the data in a clearer way.
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or Line p has an equation of y= – 8x+6. Line q, which is perpendicular to line p, includes the point (2, – 2). What is the equation of line q?
Answer:
y = 1/8 x - 9/2
Step-by-step explanation:
slope of line q = 1/8
y-(-2)= 1/8(x-2)
y+2 = 1/8 x - 1/4
y = 1/8 x - 1/4 - 2
y = 1/8 x + (-1-8)/2
y = 1/8 x -9/2
each week, between $30$ and $50$ students show up for an archery class run by betty and wilma. usually the students break up into groups of equal size for target practice. however, this week, betty noticed that she could not break the students up into multiple groups of equal size. wilma noticed that if she and betty both joined the students in practicing, they still could not break the archers up into groups of equal size. how many students showed up to the archery class this week?
This week 41 students showed up to the archery class that cannot be broken into multiple groups of equal sizes.
Prime numbers are numbers that cannot be divisible by any other numbers besides 1 and itself. Between 30 and 50, there are 4 prime numbers, which are 31, 37, 41, and 43. So, these prime numbers cannot be divided into equal sizes of multiple groups. But by adding 2 (If Betty and Wilma join the students) in 31, 37, and 43 we get composite numbers that can be divided into multiple groups of equal sizes.
So, 41 students showed up to the archery class this week and as 41 is a prime number, Betty and Wilma could not break the archers up into groups of equal size, and even if Betty and Wilma joined the students there will be 43 archers which even is a prime number and thus cannot be divided.
41 is the only possible number of students between 30 and 50 which cannot be broken into groups of equal sizes even if Betty and Wilma join the archers.
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Compare the following fraction 8/14 and 4/7
Answer:
These fractions are equivalent, with 4/7 being the simplest form of both.
Step-by-step explanation:
8/14 can be simplified to 4/7 also by dividing both sides by two :)
Convert the following. Round to 1 decimal.
0. 57 miles2 converted into feet2
0.57 mi² = 15,890,688 ft² after converting square miles in square foot.
Define the meaning of unit conversion?A unit conversion is the expression of the same feature in an another unit of measurement. Time, for example, can be stated in minutes rather than hours, and distance can be translated from miles into kilometers, feet, or indeed any length measurement. Measurements are frequently stated in one set of units, including feet, but require different units, such like chains. A conversion factor seems to be a numerical equation that allows for the equal exchange of feet and chains.The given conversion in question is-
0.57 mi² = __ ft²
We know that
1 mi² = 27,878,400 ft²
Then, multiply both sides by 0.57
1 x 0.57 mi² = 27,878,400 x 0.57 ft²
0.57 mi² = 15,890,688 ft²
Thus, the conversion of 0.57 mi² = 15,890,688 ft².
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There are some sweets in a jar
The sweets are red or orange or blue or yellow.
Hannah is going to take at random a counter from the bag.
The table shows cach of the probabilities that the counter will be blue or will be yellow.
Colour
Probability
red
orange
blue
0.5
yellow
0.2
There are 20 blue sweets in the jar.
The probability that the sweet Hannah takes will be red is twice the probability that the
sweet will be orange.
(a) Work out the number of red sweets in the jar.
the mom
the number of Red sweets=14
Let the probability of getting a red sweet be = P(R)
Let the probability of getting a Blue sweet be = P(B)
Let the probability of getting an orange sweet be = P(O)
Let the probability of getting a yellow sweet be = P(Y)
Let the number of Red sweets be represented as = n(R)
Let the number of Yellow sweets be represented as = n(Y)
Let the number of Orange sweets be represented as = n(O)
Let the number of Blue sweets be represented as = n(B)
Let the total number of sweets in the jar be represented as = n(T)
P(B) = 0.5
P(E) = 0.2
P(R) = 2 x P(O)
The formula of probability =
Number of the Sweets of a color/Total number of sweets in the jar
then,
P(B)=n(B)/ n(T)
P(B)=0.5 (Given in question)
n(B)=20 (Given in question)
So,
0.5 = 20/n(T)
5/10 = 20/n(T)
5/10 x 1/20 = 1/n(T)
cross multiplying
n(T)=10/5 x 20
dividing 10 by 5 =2
n(T) = 2 x 20
n(T) = 40
P(Y)=0.2 (Given in question)
Applying the formula of probability
P(Y) = n(Y)/n(T)
putting values
0.2=n(Y)/40
2/10=n(Y)/40
2/10 x 40 =n(Y)
Dividing 40 by 10 = 4
n(Y)= 2 x 4
n(Y)= 8
P(R)=2P(O)
Applying the formula of probability
n(R)/n(T)=2n(O)/n(T)
Cancelling out n(T) with n(T)
So,
n(R)=2 x n(O) -(i)
n(T) = n(O)+n(R)+n(B)+n(Y)
putting values
40=n(O)+n(R)+20+8
40=n(O)+n(R)+28
40-18=n(O)+n(R)
From -(i)
22=2n(O)+n(O)
22=3n(O)
n(O)=22/3
Since,
n(R)=2xn(O)
n(R)=2x22/3
n(R)=44/3
n(R)=14.6
the number of Red sweets=14.6
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Add 7w-12 and -15w+60
Show your work
Answer:
Step-by-step explanation: 7w-12+(-15w+60)= 7w-12-15w-60= -8w-72
-8w-72 is the answer or -8(w+9) if you take out a -8
The required simplified solution of the sum of the expressions is -8w + 48
What is simplification?The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
Here,
To add 7w-12 and -15w+60
According to the question,
= 7w - 12 - 15w + 60
= 7w - 15w + 60 - 12
= -8w + 48
Thus, the required simplified solution of the sum of the expressions is -8w + 48
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help meeeeeeeeeeeeeee pleaseee
Answer:
719.412
Step-by-step explanation:
S(x)=-.228x^2+8.154x-8.3 x=7 feet
Plug in 7 for x, you'll convert to inches at the end
S(x)=.228(7^2) +8.154(7)-8.3
S=49(.228)+8.154(7)-8.3
S=11.173+57.078-8.3
S=59.951
Multiply by 12 to get inches
719.412
(If this answer doesn't work then you probably need to convert to inches before plugging in for x. 7 x 12=84 so plug that in.)
Type the correct answer in each box. Use numerals instead of words.
The surface area of a square pyramid is 96 square feet. The height is two-thirds of the length of the base edge.
What is the length of the base edge?
The length of the base edge of the pyramid is …
feet.
The length of the base edge of the given square pyramid is 3.67 feet.
What is the Surface Area?
The sum of all an item's faces makes up the surface area of a three-dimensional object. When wrapping, painting, and finally creating things to get the finest possible design, we apply the idea of surface areas of various items in real life.
What is a Square Pyramid?
In geometry, a pyramid with a square base and four lateral sides is referred to as a square pyramid.A polyhedron with a base and three or more triangle faces that meet above the base is called a pyramid (the apex). A pentahedron is a three-dimensional structure with a total of five faces, such as a square pyramid. The Great Pyramid of Giza is one of the most well-known examples of a pyramid like this in real life.Steps to Calculate the Base Edge Length of Square Pyramid
The formula for surface area of square pyramid is given by, [tex]SA=a^{2} +2a\sqrt{\frac{a^{2} }{4}+h^{2} }[/tex], -----(1)
where [tex]a[/tex] is the length of the base edge and [tex]h[/tex] is the square pyramid height.
In the question, it is given that the surface area of the square pyramid is 96 square feet.
The height of the square pyramid is two-thirds of the base edge length.
[tex]\implies h=\frac{2a}{3}[/tex] ------(2)
Now substituting the given values in (1), we get
[tex]96=a^{2} +2a\sqrt{\frac{a^{2} }{4}+(\frac{2a}{3} )^{2} }\\\implies 96=a^{2} +2a\sqrt{\frac{a^{2} }{4}+\frac{4a^{2} }{9} }[/tex]
Simplifying, we get
[tex]96=a^{2} +2a\times 0.834a^{2} \\\implies 96=a^{2} +1.668a^{3} \\\implies 1.668a^{3}+a^{2} -96=0[/tex]
Finally, we get the value of [tex]a=3.67[/tex] feet.
Therefore, the base edge length of the given square pyramid is 3.67 feet.
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the ratio of drummers to guitar players who tried out for a band is 10:45 .
How many times the number of drummers is the number of guitar players?
Answer:
4.5
Step-by-step explanation:
45/10=4.5
Someone help me with this please
Answer:
C
Step-by-step explanation:
C has a directly proportional relationship. 27 glasses are in 9 cases, and 81 glasses are in 27 cases. Directly proportional since 9×3=27 (cases) and 27×3=81 (glasses)
Grace runs a website that has gotten quite popular. However, its popularity seems to have
peaked, and the site is now getting 7% fewer hits each week. If Grace's site got 38,800 hits
this week, how many weekly hits can she expect it to get 7 weeks from.
Answer:
23346
Step-by-step explanation:
You want to know the number of hits on Grace's website 7 weeks from now if she gets 38,800 now and the number decreases 7% per week.
Growth factorThe growth factor per week is ...
growth factor = 1 + growth rate
The growth rate of hits is -7% per week, so this is ...
growth factor = 1 -7% = 0.93
Exponential functionThe exponential function describing the number of hits can be written ...
hits = (initial value)(growth factor)^weeks
hits = 38,800(0.93^weeks)
Then in 7 weeks, the number of hits is expected to be ...
hits = 38,800(0.93^7) ≈ 23,346
Grace can expect to get about 23,346 hits in 7 weeks.
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is 8.75x linear or non-linear
Find the degree of the equation to determine if linear.
Linear
a box of buttons contains the same number of each type of button
it contains 220g of buttons
how many of each button are in the box
Button A=8 grams
Button B = 12 Grams
The number of buttons A will be 11. And the number of buttons B will be 11.
What is the solution to the equation?The allocation of weights to the important variables that produce the calculation's optimum is referred to as a direct consequence.
A container of buttons contains a similar number of each kind of button it contains 220g of buttons. The weight of the button is given as,
Button A=8 gramsButton B = 12 GramsLet x be the number of each button. Then the equation is given as,
8x + 12x = 220
20x = 220
x = 11
The number of buttons A will be 11. And the number of buttons B will be 11.
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If the weight of 7 sheets of paper is 28 g, find how many papers will weigh 1 .5 kg?
Answer:
Step-by-step explanation:
weight of 1 sheet= (28/7)g
=4g
1.5kg=1.5 X 1000g
=1500g
no. of papers that will weigh 1.5 kg= 1500/4
=375
Answer: 375 sheets of paper
Step-by-step explanation: First, to find the weight of one sheet of paper, we can do 28 divided by 7 to get 4 grams. Then, since 1.5 kg is 1500 grams, we can do 1500 divided by 4, which equals 375. So, 375 sheets of paper will weigh 1.5 kg.
hope this helps!
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Unit 4 congruent triangles
Answer: 9/3
Step-by-step explanation: the trriangles proportion is three and 9/3=3
Solve:-
[tex]\bf 7(5a - 4) - 1 = 14 - 8[/tex]
Answer:
a = 1
Step-by-step explanation:
Given equation,
→ 7(5a - 4) - 1 = 14 - 8
Now the value of a will be,
→ 7(5a - 4) - 1 = 14 - 8
→ 35a - 28 - 1 = 6
→ 35a - 29 = 6
→ 35a = 6 + 29
→ a = 35/35
→ [ a = 1 ]
Hence, the value of a is 1.
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help meeeeeeeee pleaseeeee rn rnnnn!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
help meeeeeeeee pleaseeeee rn rnnnn!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
help meeeeeeeee pleaseeeee rn rnnnn!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
The length and width of a rectangle that maximises the enclosed area are 800 yards. The maximum area is 640,000 square yards.
In the given question we have to find the maximum area of the rectangular area.
Liana has 3200 yards of fencing to enclose a rectangle.
As we know that the perimeter of rectangle
P= 2(l+b)
Let length of the rectangle is x yards and width is y yards.
So the equation should be
2(x+y) = 3200
Divide by 2 on both side we get
x+y = 1600................(1)
From the area of rectangle is
A = xy
From the equation the value of y is 1600-x.
Now putting the value of y
A = x(1600-x)
A = 1600x-x^2
On differentiating
dA/dx = 1600-2x
Putting dA/dx=0
1600-2x=0
Subtract 1600 on both side we get
-2x= -1600
Divide by -2 on both side we get
x = 800 yards
Now putting the value of x in the y=1600-x
y=1600-800
y=800 yards
So the maximum area is
A= 800*800
A= 640,000 square yards
Hence, the length and width of a rectangle that maximises the enclosed area are 800 yards. 640,000 square yards is the maximum area.
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What causes an echo?
rarefaction
reflection
refraction
Answer:
Reflection
Step-by-step explanation:
Reflection is like looking at yourself through a mirror, so it would be the same for sound.
Tell me if this is correct.!
Answer:
Reflection
Step-by-step explanation:
i took this quiz
Seamus buys £600 of shares in a new Company. One week later the value of the shares has Increased by 15%. find the value of the shares one week after Seamus bought them. 600/100x 15 =90 90+600=690 Is this a righ answer ?cause i am not so sure if i did it right
Answer:
yes, you did it right!
Step-by-step explanation:
You firsth calculate how much 15% of £600 are.
You did it exactly right. It's £90.
And to work out rhe value of the shares one week later, you add the £90 to the £600.
On a coordinate plane, a line goes through (0, 3) and (3, negative 1). A point is at (negative 3, 2).
What is the equation of the line that is parallel to the given line and passes through the point (−3, 2)?
3x − 4y = −17
3x − 4y = −20
4x + 3y = −2
4x + 3y = −6
Answer:
Step-by-step explanation:
The line perpendicular to y = 4 will be a vertical line through the point (−2, 1). The equation of the vertical line is x = −2.
Walnut Creek Inc. is going to do a revers stock split with a 3:4 ratio. The current price per share is $234.75 and the current number of outstanding shares is 38,750,000. What is the post-split number of shares?
The post-split market capitalization of Walnut Creek Inc. is $12995089.
Given that, Walnut Creek Inc. is going to do a revers stock split with a 3:4 ratio. The current price per share is $234.75 and the current number of outstanding shares is 38,750,000.
What is the ratio?The ratio is defined as the comparison of two quantities of the same units that indicates how much of one quantity is present in the other quantity.
Here, 3+4 = 7
Now, 1/7 × 38,750,000
= 5535714 .29 shares
So, capitalization is 5535714 × 234.75
= $12995089
Therefore, The post-split market capitalization of Walnut Creek Inc. is $12995089.
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