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Anvisha [2.4K]
3 years ago
14

An athlete's speed on her bike is 14mph faster than her average speed running. She can bike 31.5 miles in the same time that it

takes her to run 10.5 miles. Find her average speed running and her average speed biking.
Mathematics
1 answer:
scoundrel [369]3 years ago
7 0
You would cross multiply.
14 over 31.5
and X over 10.5
10.5 times 14 is 147
divide that by 31.5 which is 4 1/3
and that is how fast she can run
4 1/3 mph
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Step-by-step explanation:

Looking at the attached image, you'd see that, AB is 1 and BC is 1, that's because we are told that ratio of AB to AC is 1:2 meaning, AC is 2 and AB is 1. Therefore for that ratio to be satisfied BC has to be 1 so that AC would be 2.

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