Question

PetSmart is having a sale. All dog treats are 25% off. Ms. Longo buys four bags of treats that were originally $8 each and six that were originally $9.50 each. How much money did Ms. Longo save?

Answer 1

Ms. Longo saved `$22.25`

Explanation:

At original price:
#color(white)("XXX"){: ("4 bags at $8 each","cost",4xx$8,=,$32), ("6 bags at $9.50 each","cost",6xx$9.50,=,ul($57)), (,,"total price:",,$89) :}#

Saving at `25%` of original price:
`color(white)("XXX")25%xx$89`

`color(white)("XXXXXXX")=1/4xx$89`

`color(white)("XXXXXXX")=$22.25`

Answer 2

Ms Longo saved `$22.25`

Explanation:

`25%` of `$8` is `8*0.25=$2 :.` save for `1` bag of

`$8` treat is `$2` and then save for `4` bags of `$8` treat

is `S_8=4*2= $8`

`25%` of `$9.50` is `9.50*0.25=$2.375 :.` save for `1` bag of

`$9.50` treat is `$2.375` and then save for `6` bags of

`$9.50` treat is `S_(9.50)=6*2.375= $14.25`

Total save is `S_8 +S_(9.50)=8 + 14.25 = $22.25`

Ms Longo saved `$22.25` [Ans]