Ratios and Proportions

The length of a rectangle is 8 inches and its width is 5 inches. What is the ratio of length to width?

Write your ratio as a decimal up to three places after the decimal point. EX: 0.435

The ratio of the measures of three angles in a triangle is 4:5:6. Find the measure of each angle in the triangle.

• 40, 50, 60

• 30, 60, 90

• 48, 60, 72

• 45, 65, 70

The ratio of the measures of three angles in a triangle is 5:7:8. Find the measure of each angle in the triangle.

• 50, 70, 80

• 45, 63, 72

• 42, 65, 73

• 19, 74, 87

• 24

• 3

• 10

• 5

Solve the proportion \frac{6}{x+6}=\frac{5}{9}

• -7.2

• 4.8

• 8.766

• -8.4

Which statement best describes what a ratio is.

• A number

• A comparison of two quantities using division.

• A comparison

• A comparison of many things.

Which of the following options is a real life example of a ratio?

• 12 noodles

• 4 meatballs : 1 cup of sauce

• 1 jar of sauce

• 15 desserts

what is the ratio of seals to turtles?

• 5 : 3

• 3 to 5

• 3 of 5

• 3 : 8

what is the ratio of seals to animals

• 5 : 3

• 3 to 5

• 3 of 5

• 3 : 8

Some proportion problems are easy and can be solved using basic mental math. For example: A cookie recipe calls for 1 cup of brown sugar and 2.5 cups of flour. If I use 5 cups of flour, how much brown sugar should I use?

• 2 cups

• 5 cups

• 1 cup

• 3 cups