Mathematics, 27.08.2019 00:10, babbybronx

5.
steven runs one mile in 9 minutes this year, while
he was able to run one mile in 7.5 minutes lost
year. by what percent did his time decrease?
a. 6%
c. 17.
b. 11%
d. 20%
difficulty: medium

Answers: 1

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5.
steven runs one mile in 9 minutes this year, while
he was able to run one mile in 7.5...