I believe the answer is 64+(-28)
Answer:
3.7 hours
Step-by-step explanation:
Pat could do the job alone in 8 hours.
Patti could do the job alone in 7 hours
Output = Rate * time
Let the rate at which pat does the work = Rp
Let the rate at which Patti does the work = Rt
Let X be the total output
Rp * 8 = X
Rp = X/8
Rt * 7 = X
Rt = X/7
If both pat and Patti pick apples, we have
(Rp+Rt)T = X
(X/8 + X/7)T = X
[(7X + 8X)/56]T = X
[X(7+8)/56]T = X
Divide both sides by X
[(7+8)/56]T = 1
(15/56)T = 1
T = 56/15
T = 3.7 hours
Yes,
12/20 = 0.6 pages per minute
15/25 = 0.6 pages per minute
Answer:
Hello! answer: 65
Step-by-step explanation:
60 × 60 = 3600
25 × 25 = 625
3600 + 625 = 4225
√4225 = 65
65 × 65 = 4225 therefore c = 65 Hope that helps!
