Name: __________________________________ HR: ______ Date: _______________
Solve it using any math tool
you have in your toolbox.
Ratio Problem Solving Tools
Then solve it a second time
using a different tool.
Hey! Here’s a problem
for you.
A racecar travels 60 miles in 40 minutes. At that rate, how much time would it take to travel 45
miles?
Solution #1
(Show all your work.)
Name of the tool you used: ___________________________________
Solution #2
(Show all your work.)
Name of the tool you used: ___________________________________
MA_Ratios_Lesson11_Classwork.doc
Comparing Tools
There are many methods that can be used to solve the racecar problem. You just used 2 methods.
Watch the student presentations to see more. Now make sure you understand each tool.
Writing About It
Pick two of the tools you used today. You will compare and contrast them. Find what is the same and what
is different with each tool. List the two tools you will compare:
Tool #1: ___________________________
Similarities
Tool #2: ___________________________
Differences
Now write about it in sentence form:
Extension Problems
1. How many miles will the racecar have gone in 5 minutes at the same rate? ___________
2. What is the rate of the racecar in miles per hour? __________
3. A second racecar travels 15 miles in 8 minutes. Which racecar is faster, the first or second? Prove
your answer below.
MA_Ratios_Lesson11_Classwork.doc
Comparing Tools
Name: __________________________________ HR: ______ Date: _______________
Homework: Solve These Ratio Problems
You will use any method you like to solve the problems on this homework. Several tools are shown in
the example problem below. Name each tool.
EXAMPLE: A person who weighs 160 pounds on Earth will weigh 400 pounds on the planet Jupiter. How
much will a person weigh on Jupiter who weighs 120 pounds on Earth?
Weight on
Earth (lbs)
160
80
40
120
Weight on
Jupiter (lbs)
400
200
100
300
tool: ____________________
tool: ___________________
tool: ________________________
Answer to the Example:
______________________________
Solve these problems using any tool you like. You only need to use one tool. Show all your work. Put a
box around your answer.
1. Cheese is $4.50 per pound. How much will 12 pounds cost?
2. Tammy bought 3 widgets for $2.40. At the same price, how much would 10 widgets cost?
3. Sammy bought 4 widgets for $3.75. How much would a dozen widgets cost?
MA_Ratios_Lesson11_Classwork.doc
Remember:
Comparing
ToolsA dozen is 12!
4. The price of 2 dozen candy bars is $4.80. Bridget wants to buy 5 candy bars. What will she have to pay?
5. Jogging burns about 500 calories every 5 miles. What is the rate of calorie consumption per mile?
6. Coach Frank found several ads for soccer balls in the sports section of the local paper. Find which store
offers the best deal. Explain how you made your decision.
Kick Rite
10 balls only $55
DeMello Sports
5 balls $32
The Sports Warehouse
20 balls $115
Which is the better deal? Show your work and explain.
Explanation:
MA_Ratios_Lesson11_Classwork.doc
Comparing Tools