Understanding Ratios and Proportions

Which of the following is NOT a way to express the ratio of x to y?

• x to y

• x plus y

• x with the colon y

• x over y

What is the result of the cross product of 7/8 and 49/56?

• 7

• 392

• 56

• 49

If 25/6 is compared to 1.25/2, are they proportional?

• Cannot be determined

• They are equal

• No, they are not proportional

• Yes, they are proportional

In the equation n/12 = 3/8, what is the value of n?

• 4.5

• 8

• 3

• 12

What is the solution for x in the equation (x + 4)/12 = 3/4?

• x = 4

• x = 7

• x = 5

• x = 6

What is a rate?

• A ratio of two measurements with different units

• A ratio of two quantities with the second being 1 unit

• A model used to represent an object

• A comparison of two numbers by division

How do you convert 60 miles in 3 hours to a unit rate?

• Divide 60 by 3 to get 20 miles per hour

• Multiply 60 by 3 to get 180 miles per hour

• Add 60 and 3 to get 63 miles per hour

• Subtract 3 from 60 to get 57 miles per hour

What does a scale model represent?

• A ratio of two quantities with the second being 1 unit

• A ratio of two measurements with different units

• A model used to represent an object too small or too large to be built at actual size

• A comparison of two numbers by division

If the scale on a map is 5 inches equals 41 miles, what is the distance represented by 2.5 inches?

• 41 miles

• 10 miles

• 20.5 miles

• 5 miles

What is the purpose of using scales on maps?

• To compare two numbers by division

• To represent distances accurately on a smaller scale

• To calculate the speed of a vehicle

• To measure the height of buildings