Aim 38 - Unit Rate
Do Now:
1. George drives 144 miles in 3 hours. What is his speed in miles per hour?
2. A fisherman caught 14 pounds of swordfish. A fish market paid him $245.
How much was he paid per pound? 3. Jeff runs 3 miles in 15 minutes. What is his speed in miles per minute?
Aim 38 - Unit Rate
4. Jana is training for a triathlon that includes a 112 ­ mile bike ride. Today, she rode her bike 12 miles in 45 minutes. a) What is Jana's rate in miles per hour?
b) What is Jana's rate in miles per minute?
5. During the recent blizzard, 24 2/3 inches of snow fell in Commack over the course of 3 hours and 20 minutes. At that rate, how much snow fell in one hour?
6. The cost of walnuts at Trader Joes is $3.20 for 16 oz.
The cost of walnuts at Whole Foods is $2.30 for 10 oz.
a) Find the unit price at each store. b) At which store do the walnuts cost less?
7.
Louise is trying to decide whether or not she should buy a 12 ounce package of coffee on sale for $7.50. She knows that she can buy the same coffee for $9.00 per pound at the Coffee Hut. Which should she buy? 8. Max's favorite recipe for oatmeal raisin cookies is listed below. The recipe makes 8 servings. He wants to make some cookies but he only has one egg. Max has to adjust the amounts of the other ingredients. Oatmeal Raisin Cookies
1
3
cup butter
4
1 cups brown sugar
2
3
teaspoon cinnamon
4
2 eggs
1 teaspoon vanilla
3
2 cups oats
1
1 cups flour
2
1 teaspoon baking soda 1 cup raisins
4
a) How much flour will he need?
b) How much butter will he need?
c) How many raisins will he need?
d) How many oats will he need?
9. Max's favorite recipe for oatmeal raisin cookies is listed below. The recipe makes 8 servings. He wants make enough cookies for 12 servings. Max has to adjust the amounts of the other ingredients. Oatmeal Raisin Cookies
1
3
3
cup butter
4
1 cups brown sugar
2
teaspoon cinnamon
4
2 eggs
1 teaspoon vanilla
3
2 cups oats
4
1
1 cups flour
2
1 teaspoon baking soda 1 cup raisins
a) How much vanilla will he need?
b) How many eggs will he need?
c) How much butter will he need?
d) How many oats will he need?