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2 years ago

A family spends 20% of its monthly income on fuel. If they spend $324 a month on fuel, which is their monthly income?

Mathematics

2 answers:

zhuklara [117]2 years ago

6 0

Answer:

$1620

Step-by-step explanation:

The total amount of money * percent spent on fuel = amount spent on fuel

Substitute in what we know

Total amount of money * 20% = 324

Change to decimal form

Total amount of money *.20 = 324

Divide each side by .20

Total amount of money *.20/.20 = 324/.20

Total amount of money = 1620

nasty-shy [4]2 years ago

4 0

Your answer is $1620.

To solve this, first look at what we're given. $324 is spent a month on fuel, and fuel is 20% of their income. Therefore, $324 is 20% of the family's income per month.

Now, to solve this, we're looking for 100% of the family's income. 20% is 1/5 of 100%, so therefore $324 is 1/5 of the family's full income.

To get 100%, then multiply 20% by 5 to get 100%, and therefore multiply $324 by 5 to get the full income.

$324 * 5 = 1620, or your answer.

Good luck!

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