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4 years ago

6

Patricia has a 30% discount coupon for a jewelry store. She sees a new ring that she wants to buy. After the 30% discount was ap

plied, Patricia paid $45.50 for the ring. What was the original price of the ring?
Please Help. I will give brainliest.

1 answer:

prisoha [69]4 years ago

3 0

The answer is $59.15

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Check the picture below.

$\bf \textit{Law of Cosines}\\ \quad \\
c^2 = {{ a}}^2+{{ b}}^2-(2{{ a}}{{ b}})cos(C)\implies 
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\\\\\\
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\begin{cases}
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e=18\\
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