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MF.PR.4 Standard MF-018-A06-V03

Use ratio tables and double number lines to solve missing-value and scaling problems.

Solve a contextual double-number-line problem

Problem

A smoothie recipe is represented by this double number line. The tick marks are evenly spaced and the line continues in the same pattern.

Cups of yogurt: \(0,~2,~4,~6,~8,~?\)
Servings: \(0,~5,~10,~15,~20,~25\)

How many cups of yogurt line up with \(25~\text{servings}\)?

Double number line for a smoothie recipe. The top line is labeled Cups of yogurt with evenly spaced ticks marked 0, 2, 4, 6, 8, and a question mark. The bottom line is labeled Servings with matching ticks marked 0, 5, 10, 15, 20, 25. The final aligned tick, where 25 servings matches an unknown number of cups, is highlighted. Open full size
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Four variants of this problem type
Curriculum context
Standard
MF.PR.4
Category
Proportional Reasoning
Domain
Representations
Objective
Use ratio tables and double number lines to solve missing-value and scaling problems.
Problem type
Solve a contextual double-number-line problem