Unit Conversion Quiz

Peyton is a sprinter who can run the 40-yard dash in 4.5 seconds. He converts his speed into miles per hour. Which ratio is incorrectly written to convert his speed?

• 3 ft / 1 yd

• 5280 ft / 1 mi

• 60 sec / 1 min

• 60 min / 1 hr

Tags

CCSS.6.RP.A.3B

Olivia entered a baking contest. She needs to measure a gallon of milk if she only has a teaspoon measure. Which ratio is incorrectly written in Olivia's conversion?

• 4 quarts / 1 gallon

• 2 pints / 1 quart

• 1 cup / 4 tablespoons

• 3 teaspoons / 1 tablespoon

Tags

CCSS.4.MD.A.1

It takes Tim 4.5 hours to run 50 kilometers. Which expression will allow him to change this rate to minutes per mile?

• 4.5 hr / 1.609 km / 60 min

• 50 km / 1 mi / 60 min

• 50 km / 1 mi / 1 hr

• 4.5 hr / 1 mi / 60 min

Tags

CCSS.6.RP.A.3B

A swimmer set a world record in the women's 1500-meter freestyle, finishing the race in 15.42 minutes. If 1 meter is approximately 3.281 feet, which set of calculations could be used to convert her speed to miles per hour?

• \( \frac{1500 \, \text{meters}}{15.42 \, \text{min}} \times \frac{60 \, \text{min}}{1 \, \text{hour}} \times \frac{1 \, \text{meter}}{3.281 \, \text{feet}} \times \frac{1 \, \text{mile}}{5280 \, \text{feet}} \)

• \( \frac{1500 \, \text{meters}}{15.42 \, \text{min}} \times \frac{60 \, \text{min}}{1 \, \text{hour}} \times \frac{3.281 \, \text{feet}}{1 \, \text{meter}} \times \frac{1 \, \text{mile}}{5280 \, \text{feet}} \)

• \( \frac{1500 \, \text{meters}}{15.42 \, \text{min}} \times \frac{1 \, \text{hour}}{60 \, \text{min}} \times \frac{3.281 \, \text{feet}}{1 \, \text{meter}} \times \frac{5280 \, \text{feet}}{1 \, \text{mile}} \)

• \( \frac{1500 \, \text{meters}}{15.42 \, \text{min}} \times \frac{1 \, \text{hour}}{60 \, \text{min}} \times \frac{1 \, \text{meter}}{3.281 \, \text{feet}} \times \frac{5280 \, \text{feet}}{1 \, \text{mile}} \)

Tags

CCSS.6.RP.A.3D

A company ships an average of 30,000 items each week. How is the approximate number of items shipped each minute calculated?

• \( \frac{30,000 \, \text{items}}{1 \, \text{week}} \times \frac{1 \, \text{week}}{7 \, \text{days}} \times \frac{1 \, \text{day}}{24 \, \text{hrs}} \times \frac{1 \, \text{hr}}{60 \, \text{min}} \)

• \( \frac{30,000 \, \text{items}}{1 \, \text{week}} \times \frac{7 \, \text{days}}{1 \, \text{week}} \times \frac{24 \, \text{hrs}}{1 \, \text{day}} \times \frac{60 \, \text{min}}{1 \, \text{hr}} \)

• \( \frac{1 \, \text{week}}{30,000 \, \text{items}} \times \frac{1 \, \text{week}}{7 \, \text{days}} \times \frac{1 \, \text{day}}{24 \, \text{hrs}} \times \frac{1 \, \text{hr}}{60 \, \text{min}} \)

• \( \frac{1 \, \text{week}}{30,000 \, \text{items}} \times \frac{7 \, \text{days}}{1 \, \text{week}} \times \frac{24 \, \text{hrs}}{1 \, \text{day}} \times \frac{60 \, \text{min}}{1 \, \text{hr}} \)

Tags

CCSS.5.MD.A.1

When the temperature is 59°F, the speed of sound at sea level is 1225 kilometers per hour. Which process could be used to convert this speed into feet per second?

• 1225 km × 0.62 mi ÷ 1 hr × 1 mi ÷ 1 min ÷ 1 hr ÷ 1 km ÷ 60 min ÷ 5280 ft ÷ 60 sec

• 1225 km × 0.62 mi ÷ 5280 ft ÷ 1 hr ÷ 1 min ÷ 1 hr ÷ 1 km ÷ 60 min ÷ 60 sec

• 1225 km × 1 km ÷ 5280 ft ÷ 1 hr ÷ 1 min ÷ 0.62 mi ÷ 60 min ÷ 60 sec

• 1225 km × 0.62 mi ÷ 1 hr ÷ 1 mi ÷ 60 min ÷ 60 sec ÷ 1 hr ÷ 1 km ÷ 5280 ft

Tags

CCSS.6.RP.A.3D

Bamboo plants can grow 91 centimeters per day. What is the approximate growth of the plant, in inches per hour?

• 1.49

• 2.79

• 9.63

• 35.83

Tags

CCSS.5.MD.A.1

What is the conversion factor from centimeters to inches?

• 1 cm = 0.3937 inches

• 1 cm = 0.5 inches

• 1 cm = 0.25 inches

• 1 cm = 0.75 inches

Tags

CCSS.4.MD.A.1

How many kilometers are in 1 mile?

• 1.609 km

• 1.5 km

• 1.2 km

• 2 km

Tags

CCSS.2.MD.A.2

What is the formula to convert Celsius to Fahrenheit?

• F = (9/5)C + 32

• F = (5/9)C + 32

• F = C + 32

• F = (9/5)C - 32