6-2 Solving Proportions
Proportion- An equation that states two ratios are equivalent
Tell if each the ratios form a proportion. Use any method.
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Solve the proportion using equivalent ratios.
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Required Steps: Calculator permitted, but show all steps!!
Write the cross products as an equation
Solve the equation by dividing
l
Use algebra to solve.
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1.) If 2 tires cost $74, how much will 4 tires cost?
2.) A car uses 5 gal of gasoline to travel 150 mi. How much
gasoline will it use to travel 5 mi?
3.) Chase plays the piano and the cello. For every 2 hours he practices the piano, he
practices the cello for 3 hours. If he practiced the piano for 7 hours last week, how
many hours did he spend practicing the cello?
Demonstrate Understanding: Solve using required steps.
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5.) If 3 pairs of jeans cost $117, how many pairs of jeans could you buy for $312?
6.) For every 5 sailboats in a harbor, there are 3 motorboats.
If there are 30 sailboats, how many motorboats are there?
7.) Davis bought 4 tires for his car at a cost of $262.35.
How much would 5 tires cost at the same rate?
(round to the nearest cent)