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9966 [12]
3 years ago
14

A new crew of painters takes two times as long as the old painters. Together they can paint in 6 hours. How many hours does it t

ake the old painters to paint.
Mathematics
1 answer:
babymother [125]3 years ago
3 0
Let n be old painters time. Then the new painters are 2n. So:
1/n+1/2n=1/6
2+1=2n/6
2n=18
n=9
The old painters take 9 hours; the new ones take 18
☺☺☺☺

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Explanation:

Step 1: Simplify both sides of the equation.

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(−2)(x)+(−2)(3)=(−4)(x)+(−4)(1)+−4(Distribute)

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Step 2: Add 4x to both sides.

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Step 3: Add 6 to both sides.

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Step 4: Divide both sides by 2.

2x  = -2

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x=−1

I hope this helped answer your question! Have a great rest of your day!

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