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18 March, 10:21

The length of a solar car race track is supposed to be 4.8 meters.

Unfortunately, the carpenter made it 4.2 meter. What is the percent error?

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  1. 18 March, 10:26
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    -12.5%

    Step-by-step explanation:

    A percentage change is computed using ...

    percent change = ((new amount) - (original amount)) / (original amount) * 100%

    We want to find the percentage change from 4.8 m, so we have ...

    percent change = (4.2 - 4.8) / 4.8 * 100% = -.6/4.8*100% = - 12.5%

    The carpenter made the track 12.5% too short.
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