Linear Functions

SAT Math· difficulty 5/5

A widget machine produces 12 widgets/h, but every 100th widget is defective. Net good widgets after hh hours:

  • A

    12h(0.99)12h(0.99)

  • B

    11.88h11.88h

  • C

    12h0.12h12h - 0.12h

  • D

    All of these

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Explanation

12h12h×0.01=12h×0.99=11.88h12h - 12h \times 0.01 = 12h \times 0.99 = 11.88h. All forms equivalent.

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