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4 years ago

Zack had 20 people show up for his first exercise class he had 36 come to second class what is the percent increased

Mathematics

1 answer:

Mariulka [41]4 years ago

3 0

The percent increase is 80%

Step-by-step explanation:

Percent increase is given by:

$Percent\ Increase=\frac{Increase}{Previous\ value}*100\\While\\Increase= New\ value - Old\ value\\$

Here

New value = 36

Old Value = 20

Increase = 36-20 = 16

So,

$Percent\ increase=\frac{16}{20}*100\\=0.8*100\\=80\%$

Hence,

The percent increase is 80%

Keywords: Percentage, Percent

Learn more about percentage at:

#LearnwithBrainly

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A $12 t- shirt is on sale for 40% off at a store in Mississippi. Sales Tax on Mississippi is 9%. How Much Will The t- shirt end

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Let's calculate how much for the $12 t - shirt after the discount.

First, convert 40% into a decimal,

$40\% = 0.4$

Next, multiply the cost by the discount,

$12 \times 0.4 = 4.8$

Lastly, subtract the amount discounted,

$12 - 4.8 = 7.2$

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Now

Let's calculate the amount after the sales tax,

First convert 9% to a decimal,

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Next, multiply the cost of the t - shirt by the sales tax,

$7.2 \times 0.09 = 0.648 = 0.7$

Lastly, add the amount of sales tax to the price of the t - shirt,

$7.2 + 0.7 =7.9$

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Answer : the t - shirt will be $7.90 after everything.

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I hope that helps you out!!!

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