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2 years ago

13

Rob is saving to buy a new MP3 player. For every $12 he earns babysitting, he saves $9. On Saturday, Rob earned $36 babysitting.

How much money did he save?

1 answer:

tigry1 [53]2 years ago

5 0

Answer:

$27

Step-by-step explanation:

Set up a proportion where x is the amount of money he saved:

$\frac{12}{9}$ = $\frac{36}{x}$

Cross multiply and solve for x:

12x = 324

x = 27

So, he saved $27

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Simplifly the expression 2(x - 5)

defon

Answer:

2x - 10

Step-by-step explanation:

2(x - 5)

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Fittoniya [83]

Answer:

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Step-by-step explanation:

Given

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0 = 2x² - 8 ( add 8 to both sides )

8 = 2x² ( divide both sides by 2 )

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Ivahew [28]

Answer:

The price of the watch is 280$

Step-by-step explanation:

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So we do 30% of 400 = 120$

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2 years ago

To decrease an amount by 7%, what single multiplier would you use?

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The following numerically ordered sequence of numbers has a mean of 17 and a median of 18.

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a= 9

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