Ratios, Proportions. A proportion is an equation that states that two ratios are equal, such as:

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Presentation transcript:

Ratios, Proportions

A proportion is an equation that states that two ratios are equal, such as:

1) Are the following true proportions? = =

In simple proportions, all you need to do is examine the fractions. If the fractions both reduce to the same value, the proportion is true. This is a true proportion, since both fractions reduce to 1/ =

2) Solve for x: 4 x 6 42 =

3) Solve for x: 25 5 x 2 =

Solve the following problems. 4) If 4 tickets to a show cost $9.00, find the cost of 14 tickets. 5) A house which is appraised for $10,000 pays $300 in taxes. What should the tax be on a house appraised at $15,000.