contestada

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

Respuesta :

Set up a proportion. 

0.5 / 4 = 2.8 / x 

Cross multiply. 

0.5x = 4 * 2.8 
0.5x = 11.2 
x = 22.4

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