Ratios and Proportions PSSA Review

Anna opened a bank account. She adds the same amount of money to her account each month. The table below shows the amounts of money in her account at the ends of certain numbers of months.

Anna adds $ (a)   to her bank account each month.

Tags

CCSS.5.OA.B.3

Tags

CCSS.7.RP.A.1

Tags

CCSS.6.NS.A.1

Tags

CCSS.7.RP.A.1

Gordon made a scale drawing of a bedroom. The table below shows the actual widths and the scaled widths for some objects in Gordon’s drawing.

Gordon made a mistake in his scale drawing. For which object did Gordon not use the same scale as he did for the other objects?

• bed

• door

• floor

• table

Tags

CCSS.7.RP.A.2C

The table below shows the number of baskets Javier attempted and the number of baskets he made during his first three basketball games this season.

Which statement correctly describes the relationship between the number of baskets Javier attempted and the number of baskets he made during each game?

• The relationship is proportional. For every 5 baskets Javier attempted each game, he made 2 baskets.

• The relationship is proportional. For every 5 baskets Javier attempted each game, he made 3 baskets.

• The relationship is not proportional because the ratio of the number of baskets attempted to the number of baskets made is not constant.

• The relationship is not proportional because the number of baskets attempted from game to game increases more than the number of baskets made.

Tags

CCSS.7.RP.A.2A

The graph below models the relationship between the time (x), in hours, Janet works and the amount of money ( y), in dollars, she earns.

Which statement explains how Janet knows that the number of hours she works and the amount of money she earns are proportionally related?

• The graph is a straight line with a positive slope.

• The graph is a straight line that passes through (0, 0).

• The graph is a straight line that passes through (1, 12.5).

• The graph is a straight line with no negative x or y values.

Tags

CCSS.7.RP.A.2D

A hardware store sells nails by the pound. The graph represents the price of nails at the store.

What is the unit price of nails at the hardware store?

The unit price is $ (a)   per pound

Tags

CCSS.7.RP.A.2D

Clark and Phil are each running to raise money. The amount of money (y), in dollars, they each raise is based on the distance (x), in miles, they each run. Clark has an initial donation that he has received regardless of how many miles he runs. The graphs shown below model the amount of money each will raise based on the distance they each run.

What is the unit rate for the person for whom the amount of money and the number of miles are proportionally related?

Unit rate = $ (a)   per mile

Tags

CCSS.7.RP.A.2B

Joe has a picture that measures 8 centimeters by 12 centimeters. He creates four enlargements of the picture. The table below shows the width and the length of each enlargement.

The constant of proportionality between the width and length of the pictures is (a)  

Tags

CCSS.7.RP.A.2B