Danielle B.

asked • 10/10/16

there were 80 gallons of gas in a tank...

There were 80 gallons of gas in a tank. Now there are only 50 gallons left. 
a) calculate the decrease in the amount of gas in the tank as a percentage of the original. This percentage is the percent decrease in the amount of gas in the tank. 
b) Now calculate the new amount of gas in the tank as a percentage of the original, and subtract it from 100%
c) With the aid of a simple picture, explain why part b) must also produce the percent decrease that you calculated in a)

1 Expert Answer

By:

Arturo O. answered • 10/11/16

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