Rates and Proportions

Solve: 6/14 = 21/m

• m=48
• m=15
• m=49
• m=25

 $\frac{x}{5}=\frac{8}{10}$  

• x=7

• x=4

• x=2

• x=3

2.) Find the unit rate:  395 miles in 5 hours

• 75 miles per hour
• 71 miles per hour
• 79 miles per hour
• 72 miles per hour

Samuel spent $3.75 for 3 pounds of granola. What is his unit rate in dollars per pound?

• $.50 per pound

• $1.25 per pound

• $3 per pound

• $2.50 per pound

A car is going 50 miles per hour. A rate that describes this would have units of

• Miles and cars

• Miles and hours

• Miles only

• Hours only

Water flows from a faucet at a rate of 5 gallons every 25 seconds. At this rate, how many gallons will flow from the faucet in 45 seconds?

• 9 gallons
• 5 gallons
• 11 gallons
• 40 gallons

A machine can pack 70 boxes of spaghetti in 5 minutes. At this rate, how many boxes can they pack in 8 minutes.

• 35 boxes
• 14 boxes
• 112 boxes
• 560 boxes

You're throwing a party, and you ordered 15 pizzas for your guests. Your total came to $97.50. What was your unit cost per pizza?

• $4.95 per pizza

• $5.75 per pizza

• $7.25 per pizza

• $6.50 per pizza

After 3 hours, Damarcus had travelled 195 miles. If he travels at a constant speed, how far will he have travelled after 5 hours?

• 400 miles

• 325 miles

• 575 miles

• 650 miles

It cost me $46.80 to fill my 13-gallon gas tank. What was the price of gas per gallon?

• $3.60

• $3.55

• $3.40

• $3.50