If 60% of a number is 45 , find 20% of that number. Answer:

Convert to Decimal: Convert 60% to a decimal to find the original number. 60% as a decimal is 0.60. If 60% of a number is 45, we can set up the equation 0.60 * number = 45. To find the number, we divide both sides by 0.60. number = 45 / 0.60Calculate Original Number: Calculate the original number. number = 45 / 0.60 number = 75Convert to Decimal: Convert 20% to a decimal to find 20% of the original number. 20% as a decimal is 0.20. To find 20% of the number, we multiply the number by 0.20. 20% of number = 0.20 * 75Calculate 20%: Calculate 20% of the number. 20% of number = 0.20 * 75 20% of number = 15

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Math Problems

Grade 8

Solve percent equations

Full solution

Q. If

60 \%

of a number is

45

, find

20 \%

of that number.

\newline

Answer:

Convert to Decimal: Convert $60\%$ to a decimal to find the original number. $\newline$ $60\%$ as a decimal is $0.60$ . $\newline$ If $60\%$ of a number is $45$ , we can set up the equation $0.60 \times \text{number} = 45$ . $\newline$ To find the number, we divide both sides by $0.60$ . $\newline$ $\text{number} = \frac{45}{0.60}$
Calculate Original Number: Calculate the original number. $\newline$ $number = \frac{45}{0.60}$ $\newline$ $number = 75$
Convert to Decimal: Convert $20\%$ to a decimal to find $20\%$ of the original number. $\newline$ $20\%$ as a decimal is $0.20$ . $\newline$ To find $20\%$ of the number, we multiply the number by $0.20$ . $\newline$ $20\%$ of number $= 0.20 \times 75$
Calculate $20$ %: Calculate $20$ % of the number. $\newline$ $20\%$ of number $= 0.20 \times 75$ $\newline$ $20\%$ of number $= 15$