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lord [1]
3 years ago
5

The sum of two numbers is 27. The larger number is 6 more than twice the smaller number. What are the numbers?

Mathematics
1 answer:
yawa3891 [41]3 years ago
6 0

Answer:

Let the smaller number be x

Then the sum is

(6 + 2x) + x = 27

We now find for x

2x + x + 6 = 27

3x + 6 = 27

3x = 27-6

3x = 21

x = 21/3

x = 7

Therefore the smaller number is 7

The larger number is (2×7) + 6 = 20

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6. For a particular pickup truck, the percent markup is known to be 115% based on cost to the seller. If the seller paid $15,800
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Answer:

  • <u>53.5 %</u>

Explanation:

You can convert the percent markup into a multiplicative factor in this way:

Base price:                     15,800 . . . (cost to the seller)

Percent mark up:           115% . . .  (based on the cost to the seller)

Sale price:                      15,800 + 115% of x = 15,800 + 115 × 15,800 /100 =

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The markup is:

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And <em>the percent markup based on the sale price is</em>:

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Rounding to the nearest tenth percent that is 53.5 %.

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The answer is: x miles = \frac{6.60-4.20}{0.80} = 3 miles
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