Lemma
MediumSystems
OpenStax, Elementary Algebra 2e §5.6 Graphing Systems of Linear Inequalities · Review Exercise 102 · Algebra · Systems

Graphing Systems of Linear Inequalities · Review Exercise 102

Translate to a system of equations and solve.

Priam has dimes and pennies in a cup holder in his car. The total value of the coins is $4.21. The number of dimes is three less than four times the number of pennies. How many dimes and how many pennies are in the cup?

This problem repeats another one in the library (at most with different numbers), so it's left out of browsing.

~8 minWritten answer · check your work with Lemma

OpenStax, Elementary Algebra 2e · §5.6 Graphing Systems of Linear Inequalities · Review Exercise 102

Stuck? A gentle nudge

No hints for this one.

Something off?
Workspace
Your working

Check your full solution

Attach photos of your pages (up to 3) or one PDF — or check what you typed above. Lemma reads the work and verifies the reasoning, not just the answer.

Your first check today doesn't need an account.

Your photos and PDFs are read once and not stored — only the transcription is kept.