Linear Functions

SAT Math· difficulty 4/5

Internet plan A: \50++$2/GB.PlanB:GB. Plan B:$30 + $5/GB.PlanAischeaperwhenGB. Plan A is cheaper wheng$ exceeds:

  • A

    203\frac{20}{3}

    check_circle
  • B

    207\frac{20}{7}

  • C

    203\frac{20}{3}

  • D

    1010

Explanation

50+2g<30+5g20<3gg>20/350 + 2g < 30 + 5g \Rightarrow 20 < 3g \Rightarrow g > 20/3.

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