Olivia takes twelve laps on a long track in fifteen minutes. how much time will it take her to skate thirty laps ?
2 answers:
Answer:
C. 37.5 minutes
Step-by-step explanation:
Step 1: Olivia completes 12 laps in 15 minutes.
Find the unit rate. It is nothing time taken to complete 1 lap.
= 15/12
= 1.25 minutes
Step 2: Now find the time taken to complete 30 laps.
Multiply 30 by 1.25
= 30 *1.25
= 37.5 minutes.
Thank you. :)
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
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Answer:
25 dogs and 55 cats
Step-by-step explanation:
5/11 ratio, first add those up which you get 16
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75 - 15 = 60$ you subtract kind of doing it backwards in a sense to get your answer.
