On Saturday morning, Wendy watched one and a half hours of her favorite shows on television. During the shows there were 27 commercials. What is the unit rate of commercials per hour?
9 hours per commercial
12 commercials per hour
14 commercials per hour
18 commercials per hour
Question 4(Multiple Choice Worth 2 points)
(Rates MC)
Printer A prints 100 pages for $23.99. Printer B prints 275 sheets for $63.99. Which printer has the better rate of cost per page?
Printer A, because the approximate rate of Printer A, $0.24 per page, is greater than the approximate rate of Printer B, $0.23 per page
Printer A, because the approximate rate of Printer A, $4.16 per page, is less than the approximate rate of Printer B, $4.30 per page
Printer B, because the approximate rate of Printer A, $0.24 per page, is greater than the approximate rate of Printer B, $0.23 per page
Printer B, because the approximate rate of Printer A, $4.16 per page, is less than the approximate rate of Printer B, $4.30 per page
Question 5(Multiple Choice Worth 2 points)
(Rates MC)
Cruz purchased a large pizza for $14.10. It serves 6 people. What is the cost per serving?
$1.41 per serving
$2.35 per serving
$3.04 per serving
$8.46 per serving
Question 6 (Essay Worth 4 points)
(Rates HC)
Margie and her sister wanted to purchase a bag of popcorn for movie night. They compared the prices and sizes of four bags of popcorn.
Pop-A-Lot Pop Kornz Pop-arazzi Kernels Popcorn
Size 8 ounces 12 ounces 11 ounces 6 ounces
Cost $4.32 $7.44 $6.27 $4.38
Part A: Calculate the corresponding unit rate for each package. (2 points)
Part B: Interpret what the unit rates found in Part A represent. (1 point)
Part C: Choose which package is the best buy. (1 point)
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FDK251.12
Part A:
To calculate the unit rate for each package, divide the cost by the size of each bag.
Pop-A-Lot: $4.32 / 8 ounces = $0.54 per ounce
Pop Kornz: $7.44 / 12 ounces = $0.62 per ounce
Pop-arazzi: $6.27 / 11 ounces = $0.57 per ounce
Kernels Popcorn: $4.38 / 6 ounces = $0.73 per ounce
Part B:
The unit rates found in Part A represent the cost per ounce of each package of popcorn. It shows how much each ounce of popcorn costs.
Part C:
To determine the best buy, we need to look for the package with the lowest unit rate. In this case, Pop-A-Lot has the lowest unit rate of $0.54 per ounce. Therefore, Pop-A-Lot is the best buy.