Grade 8 Algebra: Word Problems: Linear Functions

Name: ______________________Date: ____________Score: ____ / 8

Level 2

Using an equation

1. Solve:
$\text{A}$ $\text{gym}$ $\text{charges}$ $\text{a}$ $\text{20}$ $\text{dollar}$ $\text{sign-up}$ $\text{fee}$ $\text{plus}$ $\text{15}$ $\text{dollars}$ $\text{per}$ $\text{month.}$ $\text{What}$ $\text{is}$ $\text{the}$ $\text{total}$ $\text{cost}$ $\text{after}$ $\text{6}$ $\text{months?}$
2. Solve:
$\text{A}$ $\text{plant}$ $\text{is}$ $\text{4}$ $\text{cm}$ $\text{tall}$ $\text{and}$ $\text{grows}$ $\text{2}$ $\text{cm}$ $\text{per}$ $\text{week.}$ $\text{After}$ $\text{how}$ $\text{many}$ $\text{weeks}$ $\text{will}$ $\text{it}$ $\text{be}$ $\text{18}$ $\text{cm}$ $\text{tall?}$
3. Solve:
$\text{A}$ $\text{taxi}$ $\text{charges}$ $\text{3}$ $\text{dollars}$ $\text{plus}$ $\text{2}$ $\text{dollars}$ $\text{per}$ $\text{mile.}$ $\text{How}$ $\text{far}$ $\text{can}$ $\text{you}$ $\text{ride}$ $\text{for}$ $\text{25}$ $\text{dollars?}$
4. Solve:
$\text{A}$ $\text{tank}$ $\text{has}$ $\text{80}$ $\text{liters}$ $\text{and}$ $\text{drains}$ $\text{4}$ $\text{liters}$ $\text{per}$ $\text{minute.}$ $\text{When}$ $\text{will}$ $\text{it}$ $\text{be}$ $\text{empty?}$
5. Solve:
$\text{A}$ $\text{plumber}$ $\text{charges}$ $\text{45}$ $\text{dollars}$ $\text{per}$ $\text{hour}$ $\text{plus}$ $\text{a}$ $\text{60}$ $\text{dollar}$ $\text{visit}$ $\text{fee.}$ $\text{What}$ $\text{does}$ $\text{a}$ $\text{3}$ $\text{hour}$ $\text{job}$ $\text{cost?}$
6. Solve:
$\text{A}$ $\text{car}$ $\text{has}$ $\text{12}$ $\text{gallons}$ $\text{of}$ $\text{gas}$ $\text{and}$ $\text{uses}$ $\text{0.5}$ $\text{gallons}$ $\text{per}$ $\text{hour}$ $\text{of}$ $\text{driving.}$ $\text{How}$ $\text{much}$ $\text{gas}$ $\text{is}$ $\text{left}$ $\text{after}$ $\text{8}$ $\text{hours?}$
7. Solve:
$\text{A}$ $\text{savings}$ $\text{account}$ $\text{starts}$ $\text{with}$ $\text{150}$ $\text{dollars}$ $\text{and}$ $\text{grows}$ $\text{by}$ $\text{25}$ $\text{dollars}$ $\text{each}$ $\text{week.}$ $\text{When}$ $\text{will}$ $\text{it}$ $\text{reach}$ $\text{400}$ $\text{dollars?}$
8. Solve:
$\text{A}$ $\text{printer}$ $\text{has}$ $\text{500}$ $\text{sheets}$ $\text{and}$ $\text{prints}$ $\text{20}$ $\text{pages}$ $\text{per}$ $\text{minute.}$ $\text{How}$ $\text{many}$ $\text{sheets}$ $\text{are}$ $\text{left}$ $\text{after}$ $\text{12}$ $\text{minutes?}$