Lemma
MediumInequalities
OpenStax, Elementary Algebra 2e §3.6 Solve Applications with Linear Inequalities · Exercise 125 · Algebra · Inequalities

Solve Applications with Linear Inequalities · Exercise 125

At a concert, $1,600 in tickets were sold. Adult tickets were $9 each and children’s tickets were $4 each. If the number of adult tickets was 30 less than twice the number of children’s tickets, how many of each kind were sold?

~8 minWritten answer · compare with the solution

OpenStax, Elementary Algebra 2e · §3.6 Solve Applications with Linear Inequalities · Exercise 125

Stuck? A gentle nudge

No hints for this one.

Something off?
Workspace
Your working

Check your full solution

Upload photos of your handwritten work or a PDF, and Lemma will read it and tell you whether it's right — and where it first goes wrong if not.