# math

in a series of stamps annie must buy six of each
one cost \$4.00
one cost \$2.50
one cost \$1.20
one cost \$1.00
she had to post a parcel and totals cost of postage was \$25.70.what stamps can she use from the selection to make up this amount using
a)as many \$4.00 stamps as possible
b)all her \$1.00 stamps
c)what is the largest # that she can use from her collection to post the parcel
d)list the stamps she can use

1. I'll get you started.

To get the \$0.70, she'll need to use one \$2.50 stamp and one \$1.20 stamp in each situation.

\$25.70 - \$3.70 = \$22.00

a) five \$4.00 stamps + two \$1.00 stamps + one \$2.50 stamps + one \$1.20 stamps

b) six \$1.00 stamps + one \$2.50 stamps + one \$1.20 stamps + ???

posted by Ms. Sue
2. in a series of stamps annie must buy six of each
one cost \$4.00
one cost \$2.50
one cost \$1.20
one cost \$1.00
she had to post a parcel and totals cost of postage was \$25.70.what stamps can she use from the selection to make up this amount using
a)as many \$4.00 stamps as possible
b)all her \$1.00 stamps
c)what is the largest # that she can use from her collection to post the parcel
d)list the stamps she can use

Must use all the \$1.00 stamps.
Therefore 25.70 - 6.00 = 19.70
The maximum number of \$4.00 stamps now useable is 4.
Therefore, 19.70 - 16 = \$3.70
Using 1 \$1.20 and 1 \$2.50 makes \$3.70.

Therefore:
6 + 1.20 + 2.50 + 16 = \$25.70

posted by tchrwill

First Name

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