Hugo received $100 for his birthday. He

then saved $20 per week until he had

a total of $460 to buy a printer. Use an

equation to show how many weeks it took

him to save the money.

18 weeks

Step-by-step explanation:

Total amount of money saved up to buy the printer is T (w), where w is the number of weeks.

Then T (w) = $100 + ($20/wk) w

Setting this equal to $460, we solve the resulting equation for w to determine the number of weeks it took Hugo to save up $460 total:

$460 = $100 + ($20/wk) w, or

$360 = ($20/wk) w, or

w = $360 / ($20/wk) = 18 weeks