Proportion Word Problems Challenge

Mrs. Rubbery explains how to use proportions, ratios, and cross multiplication to solve real-world problems. The video includes three examples: calculating calories in different coffee sizes, determining earnings based on hours worked, and calculating walking distance over time. Each example involves setting up a ratio table, forming an algebraic equation, and solving it to find the unknown variable.

What mathematical concepts are being applied to real-world situations in this video?

• Geometry and Trigonometry

• Proportions and Ratios

• Statistics and Probability

• Calculus and Algebra

Which of the following is NOT one of the four essential components for solving proportion word problems?

• Graphical representation

• Ratio table with words and numbers

• Labeled answer

• Algebraic equation

Tags

CCSS.7.RP.A.2C

What is the first step in setting up a ratio table?

• Cross multiply

• Label the answer

• Solve the equation

• Identify the two things being compared

What is the purpose of cross multiplication in solving proportions?

• To convert units

• To simplify the ratio

• To isolate the variable

• To find the average

Tags

CCSS.7.RP.A.2C

In the first example, what are the two things being compared?

• Calories and weight

• Ounces and calories

• Calories and price

• Ounces and price

Tags

CCSS.6.RP.A.3B

How many calories are in Jennifer's 12-ounce coffee?

• 120 calories

• 180 calories

• 144 calories

• 160 calories

Tags

CCSS.6.RP.A.3B

In the second example, what are the two things being compared?

• Days worked and tasks completed

• Hours worked and tasks completed

• Days worked and money earned

• Hours worked and money earned

If Joe works 9 hours, how much does he earn?

• $60

• $72

• $80

• $90

Tags

CCSS.3.OA.A.3

In the third example, what are the two things being compared?

• Miles and hours

• Miles and days

• Miles and weeks

• Miles and months

Tags

CCSS.6.RP.A.3B

How many miles will Monique walk in 30 days?

• 60 miles

• 75 miles

• 90 miles

• 105 miles

Tags

CCSS.6.RP.A.3B