MATHEMATICS MIDDLE SCHOOL

John, Rick, and Molli can paint a room working together in 6 hours. Alone, John can paint the room in 12 hours. If Rick works alone, he can paint the room in 15 hours. Write an equation comparing the group rate to the sum of the individual rates. Then find how long it will take Molli to paint the room if working alone.

Answers

Answer 1
Answer:

Answer:

60 hours

Step-by-step explanation:

John - 12 hours

Rick - 15 hours

Molli - x hours

Together - 6 hours

Each of them can paint:

John - of a room per hour

Rick - of a room per hour

Molli - of a room per hour

Together - of a room per hour

So the equation is

Solve this equation:

Molli can paint the room in 60 hours.


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Which pair shows equivalent expressions? 2x+10=-2(x-5)

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-2x-10=-2(x+5)

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Answers

Answer: -2x-10=-2(x+5)

-2x-10

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Answer:

Answer: -2x-10=-2(x+5)

-2x-10

Taking out common factor -2

= -2( x + 5 )

Step-by-step explanation:

MIDDLE SCHOOL

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Answers

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Your answer is going to be 76.09

Hope this helps



MIDDLE SCHOOL

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Answers

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X+5*3 divided by 4-2=7

Answers

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Step-by-step explanation:

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