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trapecia [35]
4 years ago
15

in the scale used on a blueprint 1 4 inch represents 2 feet on the blueprint what is the length of a room with and actual of 20

feet
Mathematics
1 answer:
sasho [114]4 years ago
5 0
Set up a proportion. 

<span>0.5 / 4 = 2.8 / x </span>

<span>Cross multiply. </span>

<span>0.5x = 4 * 2.8 </span>
<span>0.5x = 11.2 </span>
<span>x = 22.4</span>
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