Unit Rate
Convert Units
Better Buy
Double Conversion
Graphing
100
Find the unit rate.
15 books in 3 boxes
5 books in each box.
100
The height of a tree is 12 meters. What is the height of the tree in feet? (1 m = 3.28 ft)
39.36 ft.
100
A large box of cereal has 26.8 ounces and costs $5.49. A small box of the same cereal has 19 ounces and costs $4.19. Which of the two is the better buy per ounce of cereal?
The large box costs about $0.20 per oz. The smaller box costs about $0.22 per oz. The larger box is the better buy between the two sizes of cereal boxes.
100
Hannah drove 310 miles in 5 hours, while Tom drove 177 miles in 3 hours. Which of them drove faster, or did they drive at the same average speed?
For Hannah, 310 miles : 5 hours or 62 miles : 1 hour For Tom, 177 miles : 3 hours or 59 miles : 1 hour. Hannah drove faster.
100
The graph shows the amount of money made when headbands are sold. What is the cost per headband?
The unit rate is $12.50 because it’s the cost per headband.
200
During his last race, Bryce biked 43 kilometers in 2 hours. If he maintains that same speed, how far will he travel in 3 hours?
43 km divided by 2 hr = 21.5km per hour. Bryce will travel 64.5 kilometers in 3 hours.
200
Indigo measures a 2-ounce sample for an experiment. How many grams are in 2 ounces? (1 oz = 28.35 g)
56.70 grams
200
Shawna needs to buy apples to bake pies for the fair. She needs 13 pounds of apples. At one market, Shawna finds apples selling for $1.89 a pound. At another market she finds a 15-pound bag of apples for $26.99. Which market has the better deal?
The market with the 15-pound bag has the better deal.
200
The average stalactite grows 48 mm every 8 years. What is the unit rate? How many millimeters does it grow in a month?
6 mm in 1 year is the unit rate. 0.5 mm in a month.
200
What is the unit rate per hour?
45 miles per hour.
300
Patrick is making a model of the Empire State Building. The height of the building is 1,250 feet. His model is 25 centimeters tall. What factor did he use to make the model?
The scale factor is 1cm for every 50 feet.
300
The frigate bird has a top recorded speed of 153 kilometers per hour. How would you state this speed in miles per hour? (1 km = 0.62 mi)
94.86 miles
300
A grocery store sells three sizes of bags of one brand of potato chips. The big bag is 14 ounces and costs $6.30. The medium bag is 9.75 ounces and costs $2.50. The small bag is 8 ounces and costs $2.48.
Big bag: $0.45 per oz; medium bag: $0.26 per oz; small bag: $0.31 per oz. The medium bag is the best buy because it has the lowest unit rate.
300
Harry types 75 words per minute. Camilla types 4920 words in one hour. Who can type more words in 2 hours?
Camilla will type more words in 2 hours.
300
Gloria traveled 6 miles in 1 hour. Kevin traveled 11 miles in 2 hours, or 5.5 miles per hour. Gloria jogged faster.
400
A tin of mints has a mass of 50 grams. How many ounces is a tin of mints? (1 g = 0.035 oz)
1.75 oz.
400
A work ladder can extend to 8 meters. How many centimeters is that? How many kilometers is that? Use unit analysis to solve this conversion problem. (1 km = 1000 m and 1 m = 100 cm)
The ladder can extend to 0.008 km.
800 cm