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Katen [24]
3 years ago
11

A store marks down the price of a necklace from $389.85 to $314.15. By what percent did the price decrease? Round to two decimal

places.
a. 13.21%

b. 15.75%

c. 19.42%

d. 24.10%
Mathematics
2 answers:
Nata [24]3 years ago
6 0
C. 19.42% because you subtract 389.85 from 314.15 which equals 75.7. So then set it up like an algebraic equation. 389.85x=75.7 divide 75.7 by 389.85 to find the decimal. Then you have to move the decimal to the right two places, since it is a percentage. And then round your answer, so c. 19.42% is your answer. Hope this helped! :)
MaRussiya [10]3 years ago
5 0

Answer: C. 19.42 %

Step-by-step explanation:

Since, the initial price of the necklace = $ 389.85,

Final price of the necklace = $ 314.15,

Total discount in the price  = 389.85 - 314.15 = $ 75.7

Since,

\text{ The discount percentage}=\frac{\text{ Total discount}}{\text{Initial price}}\times 100

=\frac{75.7}{389.85}\times 100

=\frac{7570}{389.85}=19.4177248\approx 19.42\%

Hence, The price decreased 19.42%.

⇒ Option C is correct.

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