CBA 1 Review

A snail moving at a constant rate traveled 0.5 inch in 1.5 minutes. Create a graph to represent y, the number of inches the snail travels in x minutes.

Select two points on the coordinate grid. A line will connect the points.

Answer explanation

Since the snail is moving at a constant rate, it is a proportional relationship. The first point that is easy to graph is (0,0). The second point that is easy to graph would be (3,1) because all you had to do was multiply the distance and time by 2 to get whole numbers. 0.5 times 2 is 1 and 1.5 times 2 is 3, so that means that the snail traveled 1 inch in 3 minutes.

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7.4(A)

Match the following formulas to the correct word.

• Ratio of Pi

• Radius

• Circumference

• Diameter

• Area of a Circle

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7.5(B)

7.9(B)

Cheddar cheese costs $4.25 per pound. Which equation best represents y, the total cost of x pounds of cheddar cheese?

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7.4(A)

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7.5(B)

Click and drag the words to label the parts of a circle.

a

b

c

d

Center Point

Circumference

Radius

Diameter

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7.9(B)

A recipe says to use 3 cups of flour to make 48 cookies. What is the constant of proportionality that relates the number of coolies made, y, to the number of cups of flour used, x?

• 0.0625

• 3
• 48
• 16

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7.4(C)

Hector paid $105 for 6 tickets to a hockey game. Each ticket cost the same amount. What was the cost of each ticket in dollars and cents?

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7.4(B)

The length of a ruler is 12 inches. There are approximately 25.4 millimeters in 1 inch.

Which measurement is closest to the length of the ruler in millimeters?

• 3,048 millimeters

• 304.8 millimeters
• 30.48 millimeters

• 3.048 millimeters

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7.4(E)

The price of a television was changed from $250 to $200. What was the percent of change?

Choose the correct answer from each drop-down menu to complete the statement.

The price of the television ​ (a)   by ​ (b)  

• decreased
• increased
• 20%
• 25%
• 80%
• 50%

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7.4(D)

1. The radius of circle M is half the radius of circle R. The radius of circle R is 20 centimeters.
   Which measurement is closest to the area of circle M in square centimeters?

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7.9(B)