Question

Last year, Renata earned $540 delivering newspapers. This year, Renata made 250% of what she made last year.

Percent of a Number

Which steps should you take to find out how much money Renata made delivering newspapers this year? Check all that apply.
Convert 250% to a decimal to get 0.25.
Convert 250% to a decimal to get 2.50.
Multiply 0.25 by 540 to get $135.
Multiply 2.50 by 540 to get $1,350.
Check your answer by using 100% + 100% + 50% to get 540 + 540 + 270.

Answer 1

Answer: There are 3 Correct Answers.

B. Convert 250% to a decimal to get 2.50.

D. Multiply 2.50 by 540 to get $1,350.

E. Check your answer by using 100% + 100% + 50% to get 540 + 540 + 270

Answer 2

Convert 250% to decimal to get 2.50.

Multiply 2.50 by 540 to get $1,350

Explanation:

Percentage calculations

The percent sign % means one-hundredth of something. 15% is 15/100=0.15. We can safely divide the amount in % and divide it by 100 to get the decimal expression.

Knowing Renata earned $540 last year and this year made 250% of that quantity, we can write 250%=250/100=2.5 times the earnings of last year.

The first step should be

Convert 250% to decimal to get 2.50.

Now we must multiply 2.50 by 540 to get $1,350

Checking, adding 100%+100%+50% of 540 is 540+540+270=$1,350 as expected