Post date: Nov 23, 2015 1:34:40 AM
1.) Leroi and Sylvia both put $100 in a savings account. Leroi decides he will put in an additional $10 each week. Sylvia decides to put in an additional 10% of the amount in the account each week.
a. a) Who has more money after the first additional deposit? Explain.
b. b) Who has more money after the second additional deposit? Explain.
c. C) How do you think the amounts in the two accounts will compare after a month?
2) Eric downloads the coupon shown and goes shopping at Gadgets Galore, where he buys a digital camera for $95 and an extra battery for $15.99.
a. a) What is the total cost if the coupon is applied to the digital camera?
b. b) What is the total cost if the coupon is applied to the extra battery?
c. c) To which item should Eric apply the discount? Explain.
d. d) Eric has to pay 8% sales tax after the coupon is applied. How much is his total bill?
3) A bike was on sale for 40% off its original price of b. The store was offering an extra 15% off the sale price to all first time customers. Write an expression that shows the price of the bike as a product of the original price for a first time customer.
4) James bought 4 shirts that were on sale for 15% off each. He thought to himself, “What a great deal, I’m getting 60% off my purchase because 4 x 15% = 60%.” Was James correct in his thinking? Explain why or why not
5) For Anthony’s birthday his mother is making cupcakes for his 12 friends at his daycare. The recipe calls for 3 ⅓ cups of flour. This recipe makes 2 ½ dozen cookies. Anthony’s mother has only 1 cup of flour. Is there enough flour for each of his friends to get a cupcake? Explain and show your work.
6) One lap around a dirt track is 1/3 mile. It takes Bryce 1/9 hour to ride one lap. What is Bryce’s unit rate around the track?
7) Mr. Gengel wants to make a shelf with boards that are 4/3 feet long. If he has an 18 foot board, how many pieces can he cut from the big board?
8) The local bakery uses 1.75 cups of flour in each batch of cookies. The bakery used 5.25 cups of flour this morning.
a) How many batches of cookies did the bakery make?
b) If there are 5 dozen cookies in each batch, how many cookies did the bakery make yesterday?
9) Jason eats 10 ounces of candy in 5 days.
a) How many pounds will he eat per day? (16 ounces = 1 pound)
b) How long will it take Jason to eat 1 pound of candy?
10) It cost $5 to send 6 packages through a certain shipping company. Consider the number of packages per dollar.
a) Find the constant of proportionality for this situation.
b) Write an equation to represent the relationship.
11) On average, Susan downloads 60 songs per month. An online music vendor sells package prices for songs that can be downloaded on to personal digital devices. The graph below shows the package prices for the most popular promotions. Susan wants to know if she should buy her music from this company or pay a flat fee of $58.00 for the month offered by another company. Which is the better buy?
1