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OpenStudy (anonymous):
What is the first step that you have to do in order to solve the proportion: the ratio of 1 inch over 10 miles equals the ratio of 7 inches over z miles A. 10 * z = 1 * 7 B. 1 * z = 10 * 7 C. 7 * z = 10 * 1 D. 1 * 7
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OpenStudy (anonymous):
1 inch / 10 miles = 7 inches / z miles
OpenStudy (anonymous):
The first step is to cross multiply, so B would be the correct answer.
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