Question

help me with this please!! I'll give a medal!!

Answer 1

Terry has completed 15 homework problems, and Susan has completed 9. Terry is completing 10 problems per hour, and Susan is completing 12 per hour. After how many hours will Terry and Susan have completed the same number of problems? (1 point)

Answer 2

3 hours
4 hours
5 hours
10 hours

Answer 3

hmm you know susan's line is S=12x and that terry's is T=10x

Answer 4

susan's line is S=12x+9 actually

Answer 5

plug hours in

Answer 6

I always use brute strength to solve these problems

Answer 7

about 5 hours

Answer 8

You don't need to use brute strength, just find the lines like Ednac suggested and set them equal to each other to see where they intersect.

Answer 9

then solve for x

Answer 10

@msasu25 i just like using brute strength but that works too

Answer 11

ah ok