Name: ____________________________________ Period: ________ 3.3 – Practice with Word Problems!! 1. You can buy in-line skates from your friend for $40, or you can rent some. Either way, you must rent safety equipment. How many hours must you skate for the cost of renting and buying skates to be the same? SKATE RENTALS In-line skates and safety equipment $3.50/hour Safety equipment $1.50/hr a. Define a variable (what are you solving for?) b. Write an expression for each of your two options. c. Relate your two expressions from part (b) and Solve the problem. d. Why did we set the two expressions equal to each other? Name: ____________________________________ Period: ________ 2. A hairdresser is considering ordering a certain shampoo. Company A charges $4 per 8-oz bottle plus a $10 handling fee per order. Company B charges $3 per 8-oz bottle plus a $25 handling fee per order. How many bottles must the hairdresser buy before the two costs are the same? (Follow the same steps that you used in problem one to help you solve this problem!) 3. Hans needs to rent a moving truck. Suppose UHaul charges a rate of $40 per day and Budget charges a $60 fee plus $20 per day. For what number of days will the cost be the same? 4. Suppose a video store charges nonmembers $4 to rent each video. A store membership costs $21 and then only $2.50 to rent each video. For what number of videos is the cost the same? 5. Suppose your club is selling candles to raise money. It costs $100 to rent a booth from which to sell the candles. If the candles cost your club $1 each and are sold for $5 each, how many candles must be sold to equal your expenses. (Expenses means how much money you had to spend.)