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Chapter 6: Q10. (page 288)
Use equivalent ratios to solve the proportion.
The solution is .
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Use equivalent ratios to solve the proportion.
Error Analysis Describe and correct the error in writing a proportion to find the cost of 30 pencils if 12 pencils cost $2.00.
Use equivalent ratios to solve the proportion.
Geometry For each rectangle below, the measure of the longer side is the length, and the measure of the shorter side is the width.
a. Which rectangle has the greatest ratio of length to width?
b. For which rectangle is the ratio of length to width closest to 1: 1?
c. Critical Thinking The ratio of another rectangle’s length to its width is 1: 1. What type of rectangle is it?
Extended Problem Solving Your family used two full tanks of gasoline on a road trip. Your car drives about 25 miles per gallon, and the tank holds 12 gallons of gasoline.
a. Find the approximate number of gallons of gasoline used on the trip.
b. Find the approximate number of miles you drove on the trip.
c. Calculate Assume gasoline costs \(4.50 per gallon. How much did you spend per mile on gasoline?
d. Apply You have \)60 to spend on gasoline for another trip. The trip is 350 miles. You spend the same amount per mile on gasoline as on the first trip. Do you have enough money for gasoline? Explain.
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