Tomas wanted to buy a computer priced at $950. He waited for the store’s annual clearnace sale and bought the computer for $712.50. What per

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Tomas wanted to buy a computer priced at $950. He waited for the store’s annual clearnace sale and bought the computer for $712.50. What percent was the discount at the clearnace sale?

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Verity 6 months 2021-07-16T10:41:01+00:00 1 Answers 2 views 0

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    2021-07-16T10:42:37+00:00

    Answer:

    25%

    Step-by-step explanation:

    Discount is given by x(1-r) = y, where x is the original price and r is the percentage (made into a decimal) that was discounted, while y is the price after the discount.

    So, plugging the numbers given in, we have 950(1-r) = 712.50, as we don’t know r. This is hard to find, so we replace (1-r) with m (just a random letter).

    Therefore, we have 950m = 712.50. To find m, we divide 712.50 by 950, getting m = 0.75.

    That is not our answer. Earlier, we subsituted (1-r) for m. Now, we subsitutite it back. m = 0.75 so 1-r = 0.75. Therefore, we get that r, the discount rate, is equal to 0.25, or 25%.

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