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Mathematics, 05.02.2021 18:20 kenniedalany
A school bookstore has the following items for sale.
Notebook costs $2.89. Pencil costs $0.79. Folder costs $1.35.
Part A
How much will Luke pay for 4 notebooks? Enter your answer in the box.
$
Part B
Traci uses partial products to find the cost of 14 pencils.
14 pencils at $0.79 each, 10 0.7 = 7, 10 0.9 = 9, 4 0.7 = 2.8, 4 0.9 = 3.6, and $7 plus $9 plus $2.80 plus $3.60 = $22.40.
Which explains whether or not Traci’s partial products are correct?
A.
Traci's partial products are not correct. She should have multiplied 10 × 0.09 and 4 × 0.09. The actual cost is $11.06.
B.
Traci's partial products are not correct. She should have multiplied 10 × 0.07 and 4 × 0.07. The actual cost is $13.58.
C.
Traci's partial products are not correct. She should have multiplied 4 × 0.07 and 4 × 0.09. The actual cost is $16.64.
D.
Traci's partial products are correct. The actual cost is $22.40.
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A school bookstore has the following items for sale.
Notebook costs $2.89. Pencil costs $0.79. Fold...
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