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In a scale drawing a plane has a length of 35 centimeters. The actual length of the plane is 87.5 feet. What is the scale of the drawing?

Respuesta :

35 cm : 87.5 ft
1 cm : x
cross multiplying
35 cm X = 1 cm x 87.5 ft
x= 87.5 ft. cm /35 cm
x = 2.5 ft
therefore, the scale is 1 cm : 2.5 ft

Using proportions, it is found that the scale of the drawing is of 1 ft:0.4 cm.

What is a proportion?

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

In this problem, we have that 35 cm represent 87.5 ft. How many cm represent a ft?

The rule of three is given by:

35 cm - 87 ft

x cm - 1 ft

Applying cross multiplication:

[tex]87x = 35[/tex]

[tex]x = \frac{35}{87}[/tex]

[tex]x = 0.4[/tex]

Hence, the scale of the drawing is of 1 ft:0.4 cm.

More can be learned about proportions at https://brainly.com/question/24372153