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Ivelisse480
Ivelisse480 Ivelisse480
  • 02-09-2015
  • Mathematics
Answered

The temperature of an oven went from 320° to 280°. What was the percent decrease in temperature?

A14.3%
B1.25%
C12.5%
D1.43%

Verified Answer :

W0lf93
W0lf93 W0lf93
  • 13-05-2017

We have to calculate the percent decrease in temperature and to choose the correct answer. We can solve the proportion: 320 / 280 = 100 / x; then we will cross multiply. 320 x = 280 * 100; 320 x = 28,000; x = 28,000 : 320 ; x = 87.5 %. Finally : 100% - 87.5 % = 12.5 %. Answer: The percent decrease is C. 12.5 %.

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