Question
Wanda's homework was to find 73% of $400
A tape diagram. 0 dollars is 0 percent. Question mark dollars is 73 percent. 400 dollars is 100 percent. (7.3) (400) = 2,920. 73 percent of 400 dollars is 2,920 dollars.
What error did Wanda make?
None. Wanda’s work is correct.
Wanda converted the percent to a decimal incorrectly. It should be 0.073.
Wanda converted the percent to a decimal incorrectly. It should be 0.73.
Wanda has the wrong label. It should be hours, not dollars.
A tape diagram. 0 dollars is 0 percent. Question mark dollars is 73 percent. 400 dollars is 100 percent. (7.3) (400) = 2,920. 73 percent of 400 dollars is 2,920 dollars.
What error did Wanda make?
None. Wanda’s work is correct.
Wanda converted the percent to a decimal incorrectly. It should be 0.073.
Wanda converted the percent to a decimal incorrectly. It should be 0.73.
Wanda has the wrong label. It should be hours, not dollars.
Answers
GPT-4o mini
Wanda made an error in her calculation regarding the conversion of the percent to a decimal and the multiplication step.
To find 73% of $400 correctly, you need to convert 73% to a decimal. The correct conversion is:
73% = 0.73 (not 0.073).
Then you multiply:
0.73 × 400 = 292.
Therefore, Wanda's conclusion that 73% of $400 is $2,920 is incorrect, and the correct answer is $292.
So, the error Wanda made is: **Wanda converted the percent to a decimal incorrectly. It should be 0.73.**
To find 73% of $400 correctly, you need to convert 73% to a decimal. The correct conversion is:
73% = 0.73 (not 0.073).
Then you multiply:
0.73 × 400 = 292.
Therefore, Wanda's conclusion that 73% of $400 is $2,920 is incorrect, and the correct answer is $292.
So, the error Wanda made is: **Wanda converted the percent to a decimal incorrectly. It should be 0.73.**