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On a set of house plans, the scale is 2 cm : 5 m. If the actual length of a room is 18 m, what is the length of the room on the plans?
(A.) 2.5
(B.) 3.6
(C.) 7.2
(D.) 9

Respuesta :

Answer:

C. 7.2 cm

Step-by-step explanation:

It gives you the proportion.

2cm is to 5 m as 'x' cm is to 18 m

Or

2/5 = x/18

now cross multiply to solve for 'x'

5x = 36

   x = 36/5

       x = 7.2

kichell
The answer is letter C

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