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Luisa's current swimming record is 12% faster than it was last year. If her record last year was 4 minutes and 23 seconds, what is her record now? Round your answer to the nearest second.
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Nov 1, 2017
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Luisa's current swimming record is 12% faster than it was last year. If her record last year was 4 minutes and 23 seconds, what is her record now? Round your answer to the nearest second.
Mathematics
high-school
Zwiebl
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12% less since faster
100%-12%=88%
88% of 4 min and 23 sec=
0.88 times 263 seconds=
=231.44=3 minutes and 50 seconds rounded
3 mins, 50 seconds
Vettis
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Nov 5, 2017
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Vettis
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