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Brent washes 6 cars in 72 minutes. How many minutes does it take Brent to wash one car?

Approximately 4 out of every 10 students at Marc's college live on campus. The college has 3,000 students. How many of them live on campus?

The electricity costa of a business decresed from 11,000 one yeasr to 10,000 the next. To the nearest whole percent,what was the rate of decrease?

  • Math -

    1/6 of 72 = ?

    (4/10) x 3,000 = ?

    (1000/11,000) x 100 = 100 x (1/11) = ?

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