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Ratios, Rates, Proportional Relationships, and Units

SAT Math· difficulty 2/5

A jogger runs 66 miles in 5050 minutes. What is the average speed in mph?

  • A

    9.0 mph

  • B

    6.4 mph

  • C

    7.2 mph

    check_circle
  • D

    8.0 mph

Explanation

Speed =6/(50/60)=6⋅60/50=7.2= 6/(50/60) = 6 \cdot 60/50 = 7.2 mph.

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