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krek1111 [17]
3 years ago
14

A student spent 15 minutes getting a 2-foot by 3-foot bulletin board. To the nearest tenth of a minute, how long did it take the

student to paint 1 square foot?
Mathematics
1 answer:
Cerrena [4.2K]3 years ago
3 0

Answer:

The student took 2.5 minutes to paint 1 square foot.

Step-by-step explanation:

In order to know how long the student took to paint each square foot we first need to know the total area of the bulletin board. Since it is a rectangle we can compute it's area by multiplying the width and the height. That is:

area = 2*3 = 6 square foot

Since the student took 15 minutes to paint the whole board the pace at which he was working can be calculated by dividing the total area of the board by the time he took to paint all of it. So we have:

pace = 6/15 = 0.4 foot/min

To find how long it took him to paint 1 square foot we can divide it by the pace he was painting. We have:

time = 1/0.4 = 2.5 minutes

The student took 2.5 minutes to paint 1 square foot.

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For every car you sell, you get a 6% commission. IF your total sales for the month is $125,650, what is your commission?
Lera25 [3.4K]
Let
x= total cost of cars
y= total commission paid out for all cars sold

6%= 6/100 = .06

Set up an equation:
y= .06(x)

Given: x= $125,650

substitute into the y= .06(x)

multiply $125,650 by .06.

The answers would be: 7539


hope this helped :)
3 0
2 years ago
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Michael walked 30 meters in 20 seconds how many meters does he walk per second
Kipish [7]

Answer:

1.5 m/s or 1.5 meters per second

Step-by-step explanation:

Distance/Time=Speed

30m/20s= 1.5 m/s or 1.5 meters per second

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3 years ago
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There are three children’s in Kadri family.the sum of their ages is 15 the product of their age is 80 how old are each of the ka
sasho [114]

Answer:

8, 5, and  2


Step-by-step explanation:

8+5+2= 15

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8 0
3 years ago
I need help finding y
denpristay [2]

Answer:

y = 9.8995

Step-by-step explanation:

This question requires the use of basic trigonometry.

In this problem, we know one of the sides and two of the angles.

Since one of the angles is 45 degrees and the sum of all internal angles of a triangle is 180 degrees, the other angle can only be 45 degrees, making this an isosceles triangle - that is, the length of the other leg, x, is also 7.

You could use the soh cah toa mnemonic to figure it out, but here just using the a^2 + b^2 = c^2 should be sufficient since we know both legs of the triangle.

7^2 + 7^2 = 98, and the square root of 98 gives you about 9.8995, which sounds about right for this situation.

Hope this helped!

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Answer:

C

130 Units 2

Step-by-step explanation:

Hope this helps:)

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2 years ago
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