Rate of Change A rate is a fixed ratio between quantities of different units, like miles and hours, or dollars and gallons. What are some rates that you’ve heard of? 60 miles per hour $7.75 per hour 3 problems per minute

Rate of Change Find each rate of change. A train can travel 70 miles in 2 hours. How far will it travel in 5 hours? Victoria’s family drove 672 miles in 14 hours. What was the average rate of speed for the trip? Hint: “Average rate of speed.” is miles per hour. A bakery can make 30 pies in 2 hours, how many pies can they make in 4 hours?

Rate of Change 4) Clarissa made 18 gift baskets in 3 hours. How many gift baskets can she make in 5 hours? 5) Carla read 90 pages of her novel in 2 hours. How many pages can she read in 7 hours? 6) At Kenneth’s school, tickets for a concert were sold at a rate of 40 tickets per half hour. How many tickets will be sold in 7 hours?

Rate of Change 7) Stephanie made $25.50 for working 3 hours at the fair. How much did she make per hour? 8) If 3 gallons of gas costs $8.01. How much do 5 gallons of gas cost? 9) If a 6-pack of cokes costs $3.50, how much would an 8-pack cost? 10) If you can buy 5 candy bars for $1, how much does 1 candy bar cost?

Independent Practice Jenna uses 2 cups of sugar to make 1 gallon of tea, how many gallons of tea can she make with 7 cups of sugar? If Josie’s Mom travels 55 miles per hour, how far can she travel in 4 hours? Jonathan’s boat can travel 45 miles in 2 hours, what is his average rate of speed?

Answers 1) 175 miles 2) 48 mph 3) 60 pies 4) 30 baskets 5) 315 pages 6) 560 tickets 7) $8.50 8) $13.35 9) $4.67 10) 20 cents Independent Practice 1) 3.5 gallons 2) 220 miles 3) 22.5 miles