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eduard
3 years ago
15

mrs. robinson bought a novel at bookstore on sale for 20% off its regular price of $ 29.99.mr. chang bougth the same novel at a

different bookstore for 10% off its regular price of $ 25 which person received the better discount? explain.
Mathematics
2 answers:
Naddik [55]3 years ago
5 0
Mr. Chang received the better discount, his price was $25. less 10 percent (-2.50)=22.50 Mrs. Robinson purchased hers at $29.99 less 20 percent (-6.00) = 23.99 Mr. Chang received the better deal
agasfer [191]3 years ago
4 0
29.99-20%= 23.99
25.00-10%= 22.50 so, Mr.chang got the better deal ( but not by much.)
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Answer:

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Given

To properly solve this question, I illustrate some given parameters using attached image

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This implies that:

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Apply Pythagoras theorem

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x^2 + 1^2 = 2^2

x^2 + 1 = 4

x^2 = 4-1

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\sqrt 3 * 510 = 2* \frac{dy}{dt}

\frac{\sqrt 3 * 510}{2} =  \frac{dy}{dt}

\sqrt 3 * 255 =  \frac{dy}{dt}

\frac{dy}{dt} = 255\sqrt 3

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<em>Hence, the distance is 442 miles</em>

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