Lemma
EasyAlgebra word problems
OpenStax, Elementary Algebra 2e §3.3 Solve Mixture Applications · Exercise 9 · Algebra · Algebra word problems

Solve Mixture Applications · Exercise 9

Solve each coin word problem.

Harrison has $9.30 in his coin collection, all in pennies and dimes. The number of dimes is three times the number of pennies. How many coins of each type does he have?

~5 minWritten answer · compare with the solution

OpenStax, Elementary Algebra 2e · §3.3 Solve Mixture Applications · Exercise 9

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.