Answer:
.55(220-a) + .90(220-a)
Step-by-step explanation:
Answer:
36 minutes
Step-by-step explanation:
The key is to get the same amount of time for each.
9 * 12 = 108
At 12 minutes per job,
in 108 minutes Alyssa could do
108/12 = 9 jobs
At 9 minutes per job,
Together in 108 minutes they could do
108/9 = 12 jobs
--------------------------
In 108 minutes Mirada does
12 - 9 = 3 jobs
108/3 = 36 minutes per job
I did 0.80-0.25=0.55
so I figured that is what she had left so I know took the total 0.80-0.55 and got0.25 which is B.
My friend said the correct answer was A.
Don't worry I just did this problem!
-7a+4c+3 just add the similar letters
