Janine used the calculations shown to determine how much she would spend on 245 pencils. What's her error?

Tim Jones asked Nov 10, 2023

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Tim Jones asked Nov 10, 2023

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23 votes

Janine wrote the rate incorrectly. Using the following rule of three:

The correct rate would be:

$(72)/(1)=\frac{\text{?}}{3600}$

The unit price would be $0.02 , not $0.20. Thereby, she would spend $4.90 , not $69

Ottilie answered Nov 16, 2023

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