Practice Modeling with Equations in Math
Use these practice problems to test your method after reviewing the concept explanation and worked examples.
Quick Recap
Translating a real-world situation into one or more equations that capture its mathematical relationships and constraints.
Turn a word problem into math: identify what's unknown, write relationships as equations.
Example 1
easyA phone plan costs \15 per month plus \0.10 per text. Write an equation for the monthly cost C if you send t texts.
Example 2
mediumTwo trains leave the same station traveling in opposite directions at 50 mph and 70 mph. After how many hours are they 360 miles apart?
Example 3
easyWrite an equation: 'A number doubled and increased by 7 equals 25.'
Example 4
hardThe sum of three consecutive integers is 72. Find them.