kittimau
18.10.2020 •
Mathematics
Carey is trying to decide between two guitars. The first had an original price of $`60 but is on sale for $100. The second had an original price of $250 but is on sale for $150. Which guitar has a greater percent change in price?
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Ответ:
Step-by-step explanation:
First guitar
To find percent change-
First: work out the difference (increase) between the two numbers you are comparing.
Increase = New Number - Original Number.
Then: divide the increase by the original number and multiply the answer by 100.
% increase = Increase ÷ Original Number × 100.
So in this case
Increase=100-60=40
40/60*100=66.6667% increase
Second guitar
Increase=150-250=
150−250/250×100
=−0.4×100
=−40%change
=40%decrease
So first guitar
Ответ:
W-(-3)=18
W+3=18
W=15