7th 2-1 Ratios Rates and Unit Rates

Front

The ratio of boys to girls at a movie is 4 : 7. If there are 21​ girls, how many boys are at the​ movie?

Back

12

Front

A store sells a package of 25 trading cards for $5.25. What is the unit price per card?

Back

0.21

Front

Unit rate for meters per second if a car travels 374 meters in 17 seconds?

Back

22

Front

A toy store has a ratio of dolls to teddy bears as 6:5. If there are 240 dolls, how many teddy bears are there?

Back

200

Front

An airplane on autopilot took 5 hours to travel 3,475 kilometers. What is the unit rate for kilometers per hour?

Back

695

Front

At a​ supermarket, a​ 6-ounce bottle of brand A salad dressing costs​ $1.56. A​ 14-ounce bottle costs​ $3.36. A​ 20-ounce bottle costs​ $5.60. What is the best​ buy? Options: 6 oz, 14 oz, 20 oz

Back

14 oz

Front

600 millimeters of rain fell in 30 minutes. What is the unit rate for millimeters per minute?

Back

20

Front

Population density is the number of people per unit of area. The population density of a certain region is 60 people per square kilometer. If the region covers 23 square​ kilometers, what is the population of the​ region?

Back

1380

Front

In basketball, some baskets are worth two points. Others are worth three points. In one game, the ratio of three-point baskets to three-point tries for one team was 3 : 4. If the team scored 27 points from three-point baskets, how many three-point tries did the team have?

Back

12

Front

What error leads to the incorrect ratio of the length of the bridge in the painting to the actual length of the bridge? Options: Not simplifying the terms of the ratio, Reversing the terms of the ratio, Using terms with different units to find the ratio.

Back

Using terms with different units to find the ratio