let x = # at $23, and y = # at $45.
y = 210 - x
23x + 45y = 6150
Substitute 210-x for y in the second equation and solve for x. Insert that value into the first equation to solve for y. Check by putting both values into the second equation.
Jessica sold 210 magazine subscriptions during a fundraiser at her school. The subscriptions either cost $23 per year or $45 for two years. Her sales totaled $6,150. How many one-year and how many two-year subscriptions did Jessica sell?
2 answers
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