Desi is looking at his calculator, which is shaped like a rectangular prism, and estimates it is about 3 in. wide, 4 in. tall, and 12 in. thick. He wonders how many of these calculators he could fit in the trunk of his car, which is also roughly shaped like a rectangular prism, 4 ft wide, 3 ft deep, and 2 ft tall. His reasoning, shown here, contains an error.
The calculator has a volume of about 60 in³, or about 6*101 in³.
The trunk of his car has a volume of about 41,472 in³, or about 4*104 in³.
4*1046*101=23*103, so 667 calculators would fit in the trunk of his car.
What is Desi's error?
The value 41,472 should have been rounded to 4*105.
The volume of the car's trunk is not about 41,472 in³.
The value 60 should have been rounded to 6*100.
The volume of the calculator is not about 60 in³.
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