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VashaNatasha [74]
3 years ago
8

Seven times a number is the same as 12 more than 3 times the number. find the number

Mathematics
2 answers:
Arada [10]3 years ago
6 0
7x=12+3x
-3x. -3x
4x=12
x=3
Radda [10]3 years ago
5 0
7y = 12 + 3y , 4y = 12 , y = 3
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There is 4.88% decrease in Olivia's score.

Step-by-step explanation:

Given,

Score on first math test = Old value = 82 points

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The negative sign indicates the decrease.

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Decrease percent = \frac{4}{82}*100=\frac{400}{82}

Decrease percent = 4.88%

There is 4.88% decrease in Olivia's score.

Keywords: percentage, difference

Learn more about percentage at:

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  • brainly.com/question/846474

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3 years ago
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12, Find the prime factorization of 60

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bonufazy [111]

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Step-by-step explanation:

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