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Leni [432]
3 years ago
10

I need step by step help on how to work out this percentage question ​

Mathematics
1 answer:
11Alexandr11 [23.1K]3 years ago
8 0

Answer:

  • $15.7, $141.3

Step-by-step explanation:

Discount

  • 157*0.1 = $15.7

Sale price

  • 157 - 15.7 = $141.3
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If y varies directly as x, and y is 20 when x is 4, what is the constant of variation for this relation?
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Answer:

Step-by-step explanation:

y = k*x                    This is the formula for a direct variation.

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20 = 4 * k                        Divide by 4

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Answer:

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I post an image instead.
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