QuestionCaitlyn uses 40-cent and 7-cent stamps to pay \$1.76. How many of each stamp did she use?

Studdy Solution
By testing, we find that $x =2$ satisfies the condition. Plugging this into the equation gives$$y = \frac{1.76 -0.40 \times2}{0.07} =16$$So, Caitlyn used240-cent stamps and16-cent stamps.