IXL | Evaluate a linear function: word problems

This equation shows how the total number of hair bands Ruth owns is related to the amount of money she spends on additional hair bands.

h = 2d

The variable d represents the amount of money she spends on additional hair bands, and the variable h represents the total number of hair bands she owns. With $6 to spend on new hair bands, how many total hair bands can Ruth own?

hair bands

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question

This equation shows how the total cost of visiting the history museum as a member is related to the number of visits.

c = v + 13

The variable v represents the number of visits to the history museum, and the variable c represents the total cost of those visits. For a member of the history museum, what is the total cost of 4 visits?

solution

A member made 4 visits to the history museum. Plug in v = 4.

v + 13

Plug in v = 4

4 + 13

Plug in v = 4

Add

For a member of the history museum, the total cost of 4 visits is $17.

Looking for more? Try these:

Lesson: Evaluating expressions

Lesson: Solving equations

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CC.1Evaluate a linear function

M.8Solve two-step equations

Lesson: Evaluating expressions

Lesson: Solving equations

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