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amm1812
3 years ago
13

Donna purchased a prepaid phone card for $25. Long distance calls cost

Mathematics
1 answer:
levacccp [35]3 years ago
6 0
First you figure out how much money she used so $25 - $20.14 which is equal to $5.86. Now you need to figure out how much minutes that is equal to $5.86. So you need to figure out what x is equal to in:  x * <span> ¢</span>18 = $5.86.
x is equal to 32.555555 

so she was calling for 32.555555... minutes or if you are rounding it would be 32.6 minutes

hope this helps ^^
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The continent which has 59% of the total population will have more than 5.31 billion people by 2050.

<u>Step-by-step explanation:</u>

It is given that,

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Therefore, you need to find out which continent has the estimated number by finding the percentage value.

<u>To find what percent 5.31 is of billion is of 9 billion :</u>

Let x be the percentage to be calculated.

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⇒ (x/100) × 9 = 5.31

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∴ The continent which has 59% of the total population will have more than 5.31 billion people by 2050.

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