Linear Equations in One Variable

SAT Math· difficulty 3/5

Two cars start 300300 miles apart and drive toward each other. One drives at 5050 mph, the other at 7070 mph. After how many hours do they meet?

  • A

    2

  • B

    2.5

    check_circle
  • C

    3.5

  • D

    3

Explanation

Combined speed =120= 120 mph. Time =300/120=2.5= 300 / 120 = 2.5 hours.

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