Question

The scale on a map is 1 inch = 40 miles. Find the length on the map of 80 miles, 120 miles, 160 miles, and 240 miles.

inches, inches, inches, inches

Answer 1

80 miles: 2 inches

120 miles: 3 inches

160 miles: 4 inches

240 miles: 6 inches

Explanation:

Divide each of the distances by 40 to find the number of inches.

80/40 = 2

120/40 = 3

160/40 = 4

240/40 = 6

Answer 2

The answer to your question is a) 2 in b) 3 in c) 4 in d) 6 in

Explanation:

Data

scale 1 in = 40 mi

a) 80 mi

b) 120 mi

c) 160 mi

d) 240 mi

Process

To solve this problem use proportion and cross multiplication

a)

1 in ------------------ 40 mi

x ------------------ 80 mi

x = (80 x 1) / 40

x = 2 in

b)

1 in ------------------ 40 mi

x ------------------ 120 mi

x = (120 x 1) / 40

x = 3 in

c)

1 in ------------------ 40 mi

x ------------------ 160 mi

x = (160 x 1) / 40

x = 4 in

d)

1 in ------------------ 40 mi

x ------------------ 240 mi

x = (240 x 1) / 40

x = 6 in