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KatRina [158]
2 years ago
10

Question 3

Mathematics
1 answer:
german2 years ago
8 0

Part A :

D = (1/4) * C D = 1/4 * 24 D = 24/4 = 6 ft above sea level

Part B :

Your answer is positive because D is still above sea level...if it would have been below sea level, then it would have been negative

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Which expression can be used to find the price of a $400 telescope after a 32% markup? Select all that apply.
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<h3>There are 2 answers: choice C, choice D</h3>

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Explanation:

32% = 32/100 = 0.32

32% of 400 = 0.32*400 = 400(0.32), which adds onto the original 400 to get 400+400(0.32). This is why choice D is one of the answers.

We can factor out the GCF 400 to go from 400+400(0.32) to 400(1+0.32) which then simplifies to 400(1.32) or just 400*1.32. This shows choice C is the other answer. Using a calculator,

400+400(0.32) = 400 + 128 = 528

400*1.32 = 528

meaning that 400+400(0.32) = 400*1.32

The other answer choices result in other values, showing that they aren't equivalent to 528.

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