Angie and Kenny play online video games. Angie buys 2 software packages and 3 months of game play. Kenny buys 1 software package
s and 5 months of game play. Each software package costs $30. If their total cost is $210, what is the cost of one month of game play? the cost of one month of game play is $?
<span>$15
Write down some equations that express what you know.
A = 2*30 + 3x
K = 1*30 + 5x
A+K = 210
Substitute the expression for A in the A+K=210 expression
2*30 +3x + K = 210
Now substitute the expression for for K
2*30 + 3x + 1*30 + 5x = 210
Multiply and combine terms
60 + 3x + 30 + 5x = 210
90 + 8x = 210
Subtract 90 from both sides
8x = 120
Divide both sides by 8
x = 120/8 = 15
The cost of one month of game play is $15</span>
