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