Problem preview
MF.PR.4 Standard MF-018-A06-V01

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

Solve a contextual double-number-line problem

Problem

A road-trip double number line is shown below. The tick marks are evenly spaced and the line continues in the same pattern.

Hours: \(0\), \(1\), \(2\), \(3\), \(4\), \(5\)
Miles: \(0\), \(60\), \(120\), \(180\), \(240\), \(?\)

What distance in miles lines up with \(5~\text{hours}\)?

Big Picture

What this problem is really about

The evenly spaced ticks show that each one-hour move must add the same distance on the miles line. We’ll use a labeled aligned pair to identify miles per hour, then extend the pattern from four hours to the next tick. Multiplying the hourly distance by five offers a direct check of the final alignment.

Inside Gozunta

Turn the preview into practice.

More than a preview

Gozunta lets you study this problem—and more than 10,000 others.

Create targeted learning sessions, use hints, check your answer, read the walkthrough, watch the video, print the work, and track your progress.

Discover Gozunta Try it now
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