1. A commercial says," A Widget sells for $20. If you buy now, we will discount your Widget 15%. But wait, if you buy in the nex
t five minutes, we will give a second Widget for free." You take ad vantage of this terrific deal. What will you pay per Widget? 2. The scale on a set of house plains is 1/4 inch= 1 foot. How long is a wall on a room that measures 3 1/2 inches on the drawing?
3. Juan's father agreed to pay 1/3 of the cost of Juan's new bike. Juan's father paid $37. How much did the bike cost?
1. Off of the first deal, our discount is (20)(1-.15)=17. However, because we get two widgets from this offer, we have half the price per widget, so per widget we pay 17/2=$8.50.
2. 3 1/2 is 14/4 inches. Since 1/4 inches is equal to one foot in this scale, the wall is 14 feet long.
3. We see that $37 is a third of the cost of the bike, so the full cost is 37*3=$111.
