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DedPeter [7]
3 years ago
13

Distributive Method (2x+3)(x

Mathematics
1 answer:
Ann [662]3 years ago
5 0

Answer

(2x + 3)=x+7

2x+3=x+7

2x-x=7-3

1x=4

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When a number is decreased by 17% the result is 15. what is the original number?
Stels [109]

Answer:

original number is 18.07

Step-by-step explanation:

Let the original number be x

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x* (1  - 0.17) = 15

x * 0.83 = 15

x = 15/0.83

x = 18.072289156

Or if your wording meant   17% of a number is 15  then:

x * 17% = 15

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x = 15/0.17 = 88.23529...

but I think you meant  "decreased by 17%"   so I choose  x = 18.07

8 0
3 years ago
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kirza4 [7]

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PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!
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Answer:  b) 15.7

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The given value is closer to 0.2486 so use 0.67 as the z-score.

Now, let's find the x-value using the formula: z=\dfrac{x-\mu}{\sigma}

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5 0
3 years ago
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Answer:

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