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CAHSEE Math 1.1 Mathematical Reasoning
228 Views

CAHSEE Mathematical Reasoning: Drill 1, Problem 1. Based on this information, which of the following can be determined?

CAHSEE Math 1.2 Mathematical Reasoning
185 Views

CAHSEE Math Mathematical Reasoning: Drill Set 1, Problem 2. Which of the following should be the most appropriate first step in solving the equation?

CAHSEE Math 1.3 Mathematical Reasoning
183 Views

CAHSEE Math Mathematical Reasoning: Drill 1 Problem 3. Which of the following is the correct order of steps?

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CAHSEE Math 1.3 Algebra and Functions 228 Views


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Description:

CAHSEE Math: Algebra and Functions: Drill Set 1, Problem 3. What equation fits the description?

Language:
English Language

Transcript

00:03

And here's your shmoop du jour...

00:07

There's a hot new video game system where kids can actually make money by killing bad guys.

00:15

Not surprisingly, Mike's parents can finally get behind their son's gaming addiction.

00:19

The system costs $230 including sales tax. Each game costs $45, tax included.

00:27

If Mike's parents have agreed to buy him the system, plus n games for his birthday...

00:31

...write an equation that could be used to find the number of games that they can purchase

00:35

if they have $500 to spend.

00:37

Here are the potential answers...

00:39

Before we spoil the ending, hit pause and try it yourself.

00:45

Right off the bat, notice that this problem doesn't need us to figure out the number

00:49

of games Mike's parents can purchase...

00:52

...we just have to come up with the equation that would get us to that information.

00:55

Cool. One less step. Party.

00:58

If n represents the number of games and each game costs $45...

01:03

...then we can represent the total game cost as "45n."

01:09

Because Mike's parents have $500 to spend, the cost of the system... 230... and the cost

01:15

of the games... 45n... must add up to 500. So we can write this as 45n + 230 = 500.

01:25

Bingo. Our answer is B.

01:27

Enough fun and games. Now get back to work.

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