Question

Leis car averages 14.5 miles per gallon while romans car averages 28.5 miles per gsllon.Use estimation to find how many times as many miles per gallon romans carr gets compared to leis car

Answer 1

about 2 times as many

Explanation:

Double 14.5 is 29, which is close to 28.5. Roman's car gets slightly less than 2 time as many miles per gallon as Lei's car.

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If you like, you can take the estimate to the next level. The estimate of "2 times" is high by a factor of 29/28.5 or by 1 unit in 58. This is between 1.5% and 2% high, so a closer estimate is between 1.96 and 1.97 times as many.

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The actual ratio is about 1.9655.