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10 December, 01:55

The ratio of height between Joey and his girlfriend is 8:7. If Joey is 72 inches tall, how tall is his girlfriend in inches

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Answers (2)
  1. 10 December, 04:10
    0
    Ratio is Joey/girlfriend = 8/7=8x/7x.

    8x is height of Joey.

    8x=72

    x=72/8=9

    7x is height of Joey's girlfriend.

    7x=7*9=63 in.

    Answer: 63 in.
  2. 10 December, 05:21
    0
    Joey : Girlfriend = 8 : 7

    Multiply the ratio by 9:

    Joey : Girlfriend = 8x9 : 7x9

    Joey : Girlfriend = 72 : 63

    Answer: His girlfriend is 63 inches tall.
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