Problema Solution
In a drawing, the length of an amoeba is 65 mm. The scale of the drawing is 1 cm: 0.1 mm. What is the actual length of the amoeba?
Answer provided by our tutors
let x be actual length of the amoeba in mm
since 1 cm = 10 mm we can write the proportion
x : 65 = 10 : 0.1
by solving we find
x = 6500 mm
x = 650 cm
x = 6.5 m
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the actual length of the amoeba is 6.5 meters.