L7 - Solve Problems Involving Proportional Relationships

5.7 Solve Problems Involving Proportional Relationships

Learning Intent:  Today, I am learning to solve problems involving proportional relationships.

Success Criteria:  I will be successful when I can solve word problems using proportions.

Math Response

Cora clears out gardens at the nearby community garden to earn

money for a new bike. She needs to clear 10 gardens to earn enough

money. If each garden takes the same amount of time to clear, and

she can clear 4 gardens in 3 hours, how long will it take her to clear

10 gardens?

How long will it take her to clear 10 gardens?

Type answer here

Correct Answer: 7.5

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​Learn: Solve Problems Involving Proportional Relationships

Math Response

Type answer here

Correct Answer: 177

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Math Response

Type answer here

Correct Answer: 6.25

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Math Response

Round to a whole person.

Type answer here

Correct Answer: 138

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Math Response

Type answer here

Correct Answer: 207

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Multiple Choice

What does k represent in the equation y = kx?

• independent variable
• constant of proportionality
• dependent variable
• krispy kreme

Math Response

The ratio of cats to dogs at the Adopt a Pet agency is 2 to 3. There are 60 dogs at the agency. What is the total number of cats at the agency?

Type answer here

Correct Answer: 40

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Math Response

Samantha is making lemonade for her family reunion. She uses 8 ounces of powder for 32 ounces of water. How much water will Samantha need if she is using 128 ounces of powder?

Type answer here

Correct Answer: 512

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Multiple Choice

Not a straight line or does not pass through the origin.

• Non-proportional

• Constant of Proportionality

• Multiplicative Inverse

• y=kx

Math Response

Hamburger meat sells 3 pounds for $6. If Alicia buys 10 pounds of hamburger, how much will she pay?

Type answer here

Correct Answer: 20

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Math Response

Write an equation for this proportional relationship?

Type answer here

Correct Answer: y=45x

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Math Response

Bailey rode her bike at a constant speed. She rode 5 mile in 25 minutes. Write an equation for minutes per mile.

Type answer here

Correct Answer: y=5x

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Multiple Choice

What does the point (6, 4) mean on the graph?

• 6 laps in 4 minutes

• 2 laps in 3 minutes

• 2/3 of a lap in 1 minute

• 4 laps in 6 minutes

Math Response

Ms. Kings second period P.E. Class has 56 students. 40 of these students enjoy playing baseball. This holds true for all 77 students in all of Ms. King's classes. How many of the 77 students enjoy playing baseball?

Type answer here

Correct Answer: 55

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Math Response

Ms. Ginsberg's second period Journalism class has 30 students. 18 of these students are earning an A or a B. This rate holds true in all of Ms. Ginsberg's classes. If Ms. Ginsberg has 80 students total, how many of these Journalism students are earning an A or a B?

Type answer here

Correct Answer: 48

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Math Response

A group of students were asked about their favorite foods. Out of the 50 students surveyed, 30 listed pizza among their favorite foods. At that rate, if 190 students were surveyed, how many would you expect to list pizza as a favorite food?

Type answer here

Correct Answer: 114

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