NEED HELP ASAP Sally can paint a room in 9 hours while it takes Steve 4 hours to paint the same room. How long would it take them to paint the room if they worked together?

working together, they can paint the room in 4 hrs 14 min

Step-by-step explanation:

Multiply both sides by 72x

8x+%2B+9x+=+72

17x+=+72

x+=+4.24 hrs

.24%2A60+=+14.4

working together, they can paint the room in 4 hrs 14 min

hello from mrbilldoesmath!

answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb