# 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.

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.

## Related Questions

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

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

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

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

-2x-10

Taking out common factor -2

= -2( x + 5 )

-2x-10

Taking out common factor -2

= -2( x + 5 )

Step-by-step explanation:

What is (7×10)+(4×1)+(9×1\100)+(2×1\000

(7x10)+(4×1)+(9×1\100)+(2×1\100)=74.11
7*10=70
4*1=4
9*1/100=0.09
2*1=2
70+4=74
74+0.09=74.09
74.09+2=76.09

Hope this helps

What is the measure in degrees of 8x if one angle is already 7x and 44.4 degrees?

7x+8x+44.4=180

15x=44.4=180

15x=135.6

x=9.04°

so 8x=72.32° and the 7x is 63.28°

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