Each of three friends—Lin, Jada, and Andre—had the goal of raising $40. How much money did each person raise? Be prepared to explain your reasoning.
Lin raised 100% of her goal.
Jada raised 50% of her goal.
Andre raised 150% of his goal.
11.2 Three-Day Biking Trip
Question 2
2.
Elena biked 8 miles on Saturday. Use the double number line to answer the questions. Be prepared to explain your reasoning.
What is 100% of her Saturday distance?
Question 3
3.
Elena biked 8 miles on Saturday. Use the double number line to answer the questions. Be prepared to explain your reasoning.
2. On Sunday, she biked 75% of her Saturday distance. How far was that?
Question 4
4.
Elena biked 8 miles on Saturday. Use the double number line to answer the questions. Be prepared to explain your reasoning.
3. On Monday, she biked 125% of her Saturday distance. How far was that?
Practice Problems
Question 5
5.
During a basketball practice, Mai attempted 40 free throws and was successful on 25% of them. How many successful free throws did she make?
If you get stuck, consider using the double number lines.
Question 6
6.
Yesterday, Priya successfully made 12 free throws. Today, she made 150% as many. How many successful free throws did Priya make today?
If you get stuck, consider using the double number lines.
Question 7
7.
A 16-ounce bottle of orange juice says it contains 200 milligrams of vitamin C, which is 250% of the daily recommended allowance of vitamin C for adults. What is 100% of the daily recommended allowance of vitamin C for adults?
Question 8
8.
At a school, 40% of the sixth-grade students said that hip-hop is their favorite kind of music. If 100 sixth-grade students prefer hip hop music, how many sixth-grade students are at the school?
Question 9
9.
Diego has a skateboard, scooter, bike, and go-cart. He wants to know which vehicle is the fastest. A friend records how far Diego travels on each vehicle in 5 seconds. For each vehicle, Diego travels as fast as he can along a straight, level path.
100 inches equal 254 centimeters. What is the distance each vehicle traveled in centimeters?
Question 10
10.
Diego has a skateboard, scooter, bike, and go-cart. He wants to know which vehicle is the fastest. A friend records how far Diego travels on each vehicle in 5 seconds. For each vehicle, Diego travels as fast as he can along a straight, level path.
Rank the vehicles in order from fastest to slowest.
go-cart
skateboard
bike
scooter
Question 11
11.
It takes 10 pounds of potatoes to make 15 pounds of mashed potatoes. At this rate: How many pounds of mashed potatoes can they make with 15 pounds of potatoes?
Question 12
12.
It takes 10 pounds of potatoes to make 15 pounds of mashed potatoes. At this rate: How many pounds of potatoes are needed to make 50 pounds of mashed potatoes?
Source: Open Up Resouces (Download for free at openupresources.org.)