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viva [34]
3 years ago
8

It takes Nate four hours to paint a wall, and it takes Jill seven hours to paint the same wall. About how many hours will it wil

l take if Nate and Jill work together to paint the wall?
Mathematics
2 answers:
Katyanochek1 [597]3 years ago
6 0
<span>Rate=1/time<span>
N=1/4 and J= 1/7
TotalN+J= \1/4 + 1/7 = 11/28

Then:
Time = 1/rate = 1/(11/28) = 28/11 hours = 2 6/11 hours= about 2.545 hours. </span></span>
weeeeeb [17]3 years ago
5 0
2.5 hours if my math is correct!

Hope this helps!!
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3 years ago
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2 years ago
Whats the answer for 6n+7-2n-14=5n-1​
12345 [234]

Answer:

Simplifying

6n + 7 + -2n + -14 = 5n + 1

Reorder the terms:

7 + -14 + 6n + -2n = 5n + 1

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-7 + 6n + -2n = 5n + 1

Combine like terms: 6n + -2n = 4n

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Reorder the terms:

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Solving

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Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right.

Add '-5n' to each side of the equation.

-7 + 4n + -5n = 1 + 5n + -5n

Combine like terms: 4n + -5n = -1n

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Combine like terms: 5n + -5n = 0

-7 + -1n = 1 + 0

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Add '7' to each side of the equation.

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Combine like terms: -7 + 7 = 0

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Divide each side by '-1'.

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Simplifying

n = -8

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
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