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The temperature of an oven went from 320° to 280°. What was the percent decrease in temperature?
A.1.25%
B.12.5%
C.1.43%
D.14.3%
 one year ago
 one year ago
The temperature of an oven went from 320° to 280°. What was the percent decrease in temperature? A.1.25% B.12.5% C.1.43% D.14.3%
 one year ago
 one year ago

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.Sam.Best ResponseYou've already chosen the best response.0
320° to 280 320280=40 40/320 x 100=?
 one year ago

fewscrewsmissingBest ResponseYou've already chosen the best response.0
(initial  final)/initial
 one year ago

ZhangYanBest ResponseYou've already chosen the best response.0
take the difference between the two and then divide that answer by your original temperature. multiply by 100 to get answer.
 one year ago

Amy876Best ResponseYou've already chosen the best response.0
@ZhangYan id didn't work ;/
 one year ago

fewscrewsmissingBest ResponseYou've already chosen the best response.0
Yeah it does. The initial temperature is 320. The final temperature is 280. Subtract 280 from 320, and divide the result by 320. Multiply this number by 100 to turn it into a percentage. Essentially what you're looking for is the change in temperature divided by the starting temperature, or, as I tend to put it, (initial  final)/initial
 one year ago

fewscrewsmissingBest ResponseYou've already chosen the best response.0
Or perhaps another way to put it, what fraction of the starting temperature does the change in temperature equal?
 one year ago
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