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16 June, 22:04

If a sample of 100 cars has 87 with grey interiors, how many in a second sample of 220 cars should have grey interiors?

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  1. 16 June, 23:44
    0
    100/87 = 220/X

    100X = 19,140

    Divide by 100

    X=191.4
  2. 16 June, 23:48
    0
    191.4 since 87% of cars are grey so you take 87% of 220 by multiplying 220 by. 87 which is 191.4
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