CAHSEE Math: Algebra and Functions: Drill Set 1, Problem 3. What equation fits the description?
|Algebra and Functions||Rate, speed, distance, and time|
|CAHSEE Math||Algebra and Functions|
...write an equation that could be used to find the number of games that they can purchase
if they have $500 to spend.
Here are the potential answers...
Before we spoil the ending, hit pause and try it yourself.
Right off the bat, notice that this problem doesn't need us to figure out the number
of games Mike's parents can purchase...
...we just have to come up with the equation that would get us to that information.
Cool. One less step. Party.
If n represents the number of games and each game costs $45...
...then we can represent the total game cost as "45n."
Because Mike's parents have $500 to spend, the cost of the system... 230... and the cost
of the games... 45n... must add up to 500. So we can write this as 45n + 230 = 500.
Bingo. Our answer is B.
Enough fun and games. Now get back to work.