Question

hugo received $100 for his bithday. He then saved $20 per week until he had a total of $460 to buy a printer. Use the equation to show how many weeks it took him to save the money.

Answer 1

18 weeks

Explanation:

So, Hugo received $100 for his birthday.

He saved $20 per week. Let x denote the weeks that passed. Therefore:

`y=100+20x`

This equation represents the total money y Hugo has after x weeks.

The printer cost $460. Thus, set y to $460:

`460=100+20x`

Solve for x.

Subtract 100 from both sides:

`360=20x`

Divide both sides by 20:

`x=18`

Therefore, it took Hugo 18 weeks to save up $460.