McGraw Hill Integrated II, 2012
MH
McGraw Hill Integrated II, 2012 View details
7. Scale Drawings and Models
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Exercise 7 Page 602

Measure the distance on the map. Then, create a proportion.

≈173 kilometers

Practice makes perfect
We are given that the scale of a map is 1.5cm: 100km. To find the actual distance between Enid and Tulsa, we will create a proportion. 1.5/100=distance on map/actual distanceAfter measuring the distance using a ruler, we can see that the cities are 2.6 centimeters apart on the map. Let's substitute this value into the proportion. Let x represent the actual distance. 1.5/100=2.6/x Now we will solve the above proportion for x using cross multiplication.
1.5/100=2.6/x
1.5* x=100*2.6
Solve for x
1.5x=260
x=260/1.5
x=173.333...
x≈ 173
The distance between Enid and Tulsa is approximately 173 kilometers.