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ioda
3 years ago
9

Kevin can travel 22 1/2 miles in 1/3 hours. What is the average speed in miles per hour

Mathematics
1 answer:
Dmitry [639]3 years ago
7 0
So, to make it an hour, multiply both numbers by 3, and boom.
It's 67.5 miles an hour
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Step-by-step explanation:

At the beginning the only bracket that is changing is the 3rd one because of the minus. (12s^4-6s^2+4s)+(6s^4-4s+27)-4s^4+s^2+12 then open the rest of the brackets. And start calculating.i will just to show you which ones u calculate together. (I'll separate the numbers depending on what they're squared to).

12s^4+6s^4-4s^4=14s^4

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