Amount of room hannah can paint in an hour = 1/20
amount of room destiny can paint in an hour = 1/16
number of hours = x
1/20x + 1/16x = 1
the reason why this formula is true is, the amount of the room painted in the end should be 1 (the whole room)
4/80x + 5/80x = 1
9/80x = 1
9x = 80
x = 80/9 hours
x = 8.89 hours
Yes because you have to show if the slope is positive or negative
Answer:
what are you saying
Step-by-step explanation:
Answer:
subtract 20 on both sides then that should give you the answer
Step-by-step explanation:
Answer:
number = 24
Step-by-step explanation:
3 x 8 = 24
24 / 3 = 8
