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Home > CCA > Chapter 9 > Lesson 9.1.4 > Problem 9-38

9-38.

Write and solve a system of equations for the situation described below. Define your variables and write your solution as a sentence. Homework Help ✎

Daria has all nickels and quarters. The number of nickels is 3 more than twice the number of quarters. If she has $1.90 in all, how many nickels does Daria have?

n = number of nickels
q = number of quarters

so: n = 2q + 3 and
$0.05n + $0.25q = $1.90.