Solving Proportions
Grade 7 · Math · 45 min· 7.rp.a.3
What's Included
Learning Objective
I can use proportions to solve real-world problems involving ratios and rates.
Warm-Up Video
Khan Academy · 5:51
Setting up proportions to solve word problems | 7th grade | Khan Academy
Practice Questions
11 questions · Short answer
Exit Ticket
Quick comprehension check
“A clothing store is having a sale: Buy 3 shirts and get the 4th for half price. If the regular price of a shirt is $18.50, define a variable and set up a proportion to determine the average cost per shirt if you buy 4 shirts. Do not solve. A baker needs to adjust a recipe. The original recipe uses 2.25 cups of sugar for every 2.75 cups of flour. If the baker wants to use 5.5 cups of flour, define a variable and set up a proportion to find out how much sugar is needed. Do not solve. A high-speed train travels 340 miles in 2.5 hours. Assuming a constant speed, define a variable and set up a proportion to determine how long it will take to travel 816 miles. Do not solve.”
Complete Lesson Package
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