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19-06-2018
Mathematics

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16) For every two feet the ramp goes up it also goes 5 feet forward. If this ratio remained constant, how many feet high would the ramp be if it went 22.5 feet forward?

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28-06-2018

The ratio up to forward is 2:5 (For every two feet the ramp goes up it also goes 5 feet forward).

If this ratio remained constant and we went x feet up and 22.5 feet forward, then x:22.5=2:5,

5x=2·22.5,

5x=45,
x=45÷5,
x=9.
Answer: 9 feet up

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