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DedPeter [7]
3 years ago
12

a crew of highway workers paved 1/5 mile in 1/8 hour. if they work at the same rate, how much will they pave in one hour?

Mathematics
1 answer:
MrRissso [65]3 years ago
5 0

Answer:

2/5

Step-by-step explanation: The easiest approach is to realize that one hour is 3 times longer than

20 minutes. The longer the time, the more they will pave

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what is peter's number? "if you subtract 12 from my number and multiply the difference by -3, the result is -54
lara31 [8.8K]

Answer:

30

Step-by-step explanation:

-54/-3 = 18

18+12 = 30

7 0
3 years ago
Roy is twice as old as Joan, and in 3 years the sum of their ages will be 21 years. Find their present ages.
Lisa [10]

Answer:

Roy is 10 years old at present and Joan is 5 years old at present

Step-by-step explanation:

Let

x----> Roy's age

y----> Joan's age

we know that

x=2y ----> equation A

(x+3)+(y+3)=21 ----> equation B

substitute equation A in equation B

(2y+3)+(y+3)=21

solve for y

3y+6=21

3y=21-6

3y=15

y=5 years

Find the value of x

x=2y  ----> x=2(5)=10 years

therefore

Roy is 10 years old at present

Joan is 5 years old at present

8 0
3 years ago
Calvin is painting an area that is 115 square feet. He is able to paint 2.5 square feet every 2 minutes. At this rate , how long
Verdich [7]

Answer:

Calvin will paint the entire area in 92 minutes or 1 hour 32 minutes.

Step-by-step explanation:

First of all we know that the total surface are that Calvin is painting is 115 square feet.

The rate at which Calvin is painting refers to the surface area he covers every 2 minutes. This is 2.5 square feet every 2 minutes.

we can set up a relation to solve this problem

If Calvin paints 2.5 ft^{2} in 2 minutes

He will paint 115 ft^{2} in x minutes

By cross multiplying, we have x= \frac{2 \times 115}{2.5}=92 minutes

Hence Calvin will paint the entire area in 92 minutes or 1 hour 32 minutes.

3 0
3 years ago
What is 38633x794 addition form!
snow_tiger [21]

Answer:

38633x794 =

30674602

Step-by-step explanation:

PLS MARK BRAINLIEST

5 0
3 years ago
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eduard
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