Lesson 11: Practice Problems
Problem 1
Solve each problem. If you get stuck, consider using the double number lines.
During a basketball practice, Mai attempted 40 free throws and was successful on 25% of them. How many successful free throws did she make?
Yesterday, Priya successfully made 12 free throws. Today, she made 150% as many. How many successful free throws did Priya make today?
Problem 2
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?
Problem 3
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? Explain or show your reasoning.
Problem 4 From Unit 3 Lesson 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.
vehicle |
distance traveled |
---|---|
skateboard |
90 feet |
scooter |
1,020 inches |
bike |
4,800 centimeters |
go-cart |
0.03 kilometers |
100 inches equal 254 centimeters. What is the distance each vehicle traveled in centimeters?
Rank the vehicles in order from fastest to slowest.
Problem 5 From Unit 3 Lesson 7
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?
How many pounds of potatoes are needed to make 50 pounds of mashed potatoes?