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Set up a proportion and solve.
1) On a map, the key indicates that 2.5 centimeters equal 10 miles. A
road on the map runs for 30 centimeters. How long is the road?

Respuesta :

jtm2588

Answer:

120 miles

Step-by-step explanation:

A proportion is a ratio that equals a ratio. I'm going to use cm/miles when I setup the proportion.

[tex]\frac{2.5}{10} =\frac{30}{x}[/tex]

Cross multiply

2.5x = 300

divide

2.5x/2.5 = 300/2.5

x = 120 miles

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