Rates Proportions and Applications

Carol can type 660 words in 12 minutes. How many words can she type in 40 minutes?

• 198 words

• 55 words

• 220 words

• 2200 words

If it costs $13.50 for 5 notebooks, how much will it cost for 8 notebooks?

• $2.70

• $21.60

• $18.50

• $67.50

In a shipment of 400 parts, 14 are found to be defective. How many defective parts should be expected in a shipment of 1000?

• 2.5 parts

• 28 parts

• 50 parts

• 35 parts

The sap of maple trees is used to make maple syrup. One gallon of maple syrup takes 40 gallons of sap. Write and solve a proportion to find the number of gallons of maple syrup that can be made from 1520 gallons of sap.

• 60,800 gallons

• 40 gallons

• 1540 gallons

• 38 gallons

At a bus station, busses depart at a rate of 3 every 10 minutes. At this rate, how many busses would depart in one hour?

• 3 busses

• 10 busses

• 13 busses

• 18 busses

Joseph drives 125 miles in 2.5 hours. At the same rate, how far will he be able to travel in 6 hours?

• 50 miles

• 125 miles

• 312.5 miles

• 300 miles

If it costs $2.49 for 3 bags of chips, how much would it cost for 8 bags of chips (round to the nearest cent if needed).

• $0.83

• $7.74

• $6.64

• $19.92

Steve drove his car 312 miles and used 12 gallons of gasoline. How far can Steve drive if he uses 22 gallons of gasoline?

• 264 miles

• 395 miles

• 572 miles

• 624 miles

A swimming pool is leaking water at a rate of 2 gallons every 10 hours. If it continues leaking at this same rate, how many gallons of water will it loose in 2 full days?

HINT (Be careful of the units!)

• 0.4 gallons

• 4 gallons

• 8.4 gallons

• 9.6 gallons

Macy can run 3 miles in 5 hours. If Macy continues to run at this same rate, how many miles will she run in 30 hours?

• 18 miles

• 3 miles

• 6 miles

• 9 miles