If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content

Get ready for Algebra 1

Course: Get ready for Algebra 1 > Unit 4

Lesson 4: Linear models
Math
Get ready for Algebra 1
Get ready for functions & sequences
Linear models
© 2023 Khan AcademyTerms of usePrivacy PolicyCookie Notice

Linear equations word problems

CCSS.Math: 8.F.A.1
Google Classroom

Problem

Andrei wants to fill a glass tank with spherical marbles and then fill the remaining space with water.
The variable w models the amount of water (in liters) Andrei uses if he uses n marbles.
w, equals, 32, minus, 0, point, 05, n
What is the volume of each marble?
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3, slash, 5
  • a simplified improper fraction, like 7, slash, 4
  • a mixed number, like 1, space, 3, slash, 4
  • an exact decimal, like 0, point, 75
  • a multiple of pi, like 12, space, start text, p, i, end text or 2, slash, 3, space, start text, p, i, end text
liters
Stuck?
Stuck?