Question

Kara is the manager of a video game store. She is in charge of buying the video games for the store to sell. She buys video games from a wholesaler that sells them for $10

each. The wholesaler also charges a fee of $160 for each bulk purchase. Kara then sells the video games for $14 each.

Write an equation to represent the cost to buy videos from the wholesaler. Let x represent the number of videos bought. Let y represent the total cost in dollars.

Answer 1

Answer: y = 10x + 160

Explanation:

The cost follows the linear equation format of:

y = mx + c

Where:

y = dependent variable or the total cost

m is the cost per each additional unit of x

x is the number of video games

c is the constant cost or rather the fee per bulk purchase

Formula is therefore:

y = 10x + 160

Using the formula. Assuming Kara buys 100 video games, the cost would be:

y = 10 * 100 + 160

y = $1,160