Answer:
C. 37.5 minutes
Step-by-step explanation:
You can set up a proportion to help you figure this out.
12/15=30/x (in this proportion, the number of laps are both on the numerator and the time it takes her is on the denomiator.)
Now, just cross multiply and your equations should be: 12·x=15·30, which equals to 12x=450.
Divide 12 on both sides and x=37.5
Answer:
1. 
2. 
Step-by-step explanation:
all you are doing is solving for "y"
<span>an equivalent ratio of 5:2
= 10:4
= </span>15:6
= 20:8
= 25:10
= 30:12
Answer:
(105.6 L / hour) x (hour / 60 min) = (105.6 / 60) = 1.76L / min .
it the tenths I think.....
