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.

### Course: Digital SAT Math>Unit 2

Lesson 7: Linear inequality word problems: foundations

# Systems of linear inequalities word problems — Harder example

Watch Sal work through a harder Systems of linear inequalities word problem.

## Want to join the conversation?

• So ' at least' means 'no less than' and ' equal to or more than'?
• Yes. At least does mean 'greater than or equal to' or 'no less than'. x is at least 10, is x ≥ 10
• what is the best way to approach and tackle word problems,am poor at it.
• I'd do what Sal does: go and underline the important parts of the word problem. After you find the key parts of the problem, use that simpler information to solve. Hope this helps. :)
• is there an easy way or one or two clues to mastering this topic? My SAT is next week and I really want to master this but it is kind of hard. Especially ones involving graphs.
• I want to try the SAT in October and these courses are making me feel a little more confident, I also realized that graphs are my weak point
• I think the hardest point is understanding context to solve real life related problems
• (Sorry if this isn't what you're talking about) Watch out for words like 'more than' or 'no less than' since they indicate the type of inequality. The first article in this lesson has a chart, so maybe take a look at it!
(1 vote)
• If it said "up to 24" how come you use the greater than/equal to sign? Wouldn't 24 be the maximum? Thanks
• actually, you would use the less than/equal to sign. you might have gotten confused with one of the incorrect answers on the bottom. hope this helped :)
• Very easy
• at
I did not understand why c>or equal to a