The temperature of an oven went from 360° to 280°.
What was the percent decrease in temperature to the nearest percent?
A.
22%
B.
29%
C.
80%
D.
130%
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OpenStudy (anonymous):
a
OpenStudy (anonymous):
@AlexandervonHumboldt2 @Michele_Laino
OpenStudy (anonymous):
a
OpenStudy (anonymous):
@SolomonZelman
OpenStudy (anonymous):
@AlexandervonHumboldt2
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OpenStudy (anonymous):
@alivejeremy
OpenStudy (solomonzelman):
Example:
Sam had 500 apples, but he ate some apples,
and now Sam has only 350 apples left.
Solution:
\(\color{#000000 }{ \displaystyle 500-350=150 }\)
(that is the amount of apples Sam ate, or alternatively
it is the amount by which the number decreased)
\(\color{#000000 }{ \displaystyle {\rm decrease~proportion}=\frac{500-150}{500}=\frac{35}{50} =0.7 }\)
(Proportion of decrease in apples
to the initial amount of apples)
\(\color{#000000 }{ \displaystyle {\text %}~{\rm decrease~proportion}=0.7 \times 100=70{\text{%}} }\)
OpenStudy (anonymous):
wait
OpenStudy (alexandervonhumboldt2):
aweeee
OpenStudy (anonymous):
.2222222222222222222222222222222222222
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