Question

Frankie purchased 3 video games for $x and a game system for $400. He spent a total of $510. 4 (a) Write an equation that can be used to determine the cost of one video game

Answer 1

Given:

Frankie purchased 3 video games for $x and a game system for $400.

He spent a total of $510.

To find:

The equation that can be used to determine the cost of one video game.

Solution:

We have,

Cost of game system (Fixed cost) = $400

Cost of 1 video game =
`\$x`

Cost of 3 video games =
`\$3x`

Now,

Total cost = Cost of game system + Cost of 3 video games

=
`\$400 + \$3x`

=
`\$(400 + 3x)`

He spent a total of $510. It means, total cost is equal to $510.

`400+3x=510`

Therefore, the required equation is
`400+3x=510`.