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11 October, 19:01

2. Ken mails three packages at the post office that weigh 8.1, 8.5, and 8.9 pounds. The post office that Ken uses rounds the weight of a package to the nearest pound to determine the price of shipment. It costs $2 to mail a package that weighs 8 pounds and $2.75 for packages that weigh 9 pounds.

a. How much did Ken pay to ship each package?

b. Ken has $7.25 in his wallet in cash. Use subtraction to determine whether Ken has enough to mail the three packages and how much extra money he has or needs.

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  1. 11 October, 20:43
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    The 8.1 rounds to 8

    8.5 rounds to 9

    8.9 rounds to 9

    a.

    8.1=$2

    8.5=$2.75

    8.9=$2.75

    b.

    7.25-2=5.25

    5.25-2.75=2.5

    2.5-2.75=-0.25

    cannot mail all three

    he needs $0.25 more
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