Answer:
the answer is 15
Step-by-step explanation:

Step-by-step explanation:
1/a = 1/b + 1/c
Multiply both sides by a.
1 = a/b + a/c
Multiply both sides by b.
b = a + ab/c
Multiply both sides by c.
bc = ac + ab
Subtract ab from both sides.
bc − ab = ac
Factor b.
b (c − a) = ac
Divide both sides by c − a.
b = ac / (c − a)
Answer:
49
Step-by-step explanation:
6(4)+25
Solve:
6 times 4=24
24+25=49
Hello!
You have to divide time by amount ran, but first change the hours to minutes.
3 hours and 28 minutes = 208 minutes
Total time = 208 minutes
Amount ran = 26 miles
It took her <u>8 minutes</u> to run 1 mile