Solve percent problems using equations.
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In Unit 2, students solved percent problems by reasoning about diagrams, double number lines, and tables. Now having learned about equations in the form $${px=q}$$, students revisit percent problems to see how they can be modeled and solved efficiently using an equation (MP.4).
If you need to adapt or shorten this lesson for remote learning, we suggest prioritizing Anchor Problem 1 (can be done independently) and Anchor Problem 2 (benefits from worked example). Find more guidance on adapting our math curriculum for remote learning here.
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What is
In general, if you’re given a percent and a whole, how can you find the part? Write this as an equation.
30% of what number is 12?
Solve this problem first by drawing a diagram. Then write and solve an equation to verify your solution.
For each situation below, write and solve an equation to answer the question.
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The following resources include problems and activities aligned to the objective of the lesson that can be used to create your own problem set.
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Paula is saving money to buy a tablet. So far, she has saved $54, which is 45% of what she needs to buy the tablet.
Write and solve an equation to find the price of the tablet.
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