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Posted by **Lilly** on Friday, October 29, 2010 at 4:26am.

- math -
**jai**, Friday, October 29, 2010 at 4:31amyou have to solve for amount per pound of each:

23.5/50 = ?

15.5/25 = ?

then subtract the answers you got to get the amount per pound that can be saved by buying the lower unit price.

hope this helps. :)

- math -
**Lilly**, Friday, October 29, 2010 at 4:42am4oes 23.5/50 = 0.47;

- math -
**jai**, Friday, October 29, 2010 at 4:44amright. :)

how about 15.5/25 = ?

- math -
**Lilly**, Friday, October 29, 2010 at 4:45am0.62?

- math -
**jai**, Friday, October 29, 2010 at 4:46amright. :)

now, subtract them to get amount per pound that can be saved.

- math -
**Lilly**, Friday, October 29, 2010 at 4:47am0.14 punds?

- math -
**Lilly**, Friday, October 29, 2010 at 4:48am0.15*

- math -
**jai**, Friday, October 29, 2010 at 4:50amright. :)

but since it's amount per pound, the units must be in dollars/pound.

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