Mallory‘s mom gave her $25 to buy school supplies. Mallory needs buy five notebooks and some mechanical pencils. If each notebook cost $2.19 and each mechanical pencil cost one dollar dollar and $.50 how many mechanical pencils can Mallory by using only the money, her mom gave her.
First, we need to calculate how much Mallory will spend on notebooks.
5 notebooks x $2.19 = $10.95
Next, we subtract the cost of notebooks from the total money her mom gave her:
$25 - $10.95 = $14.05
Now, we need to calculate how much each mechanical pencil costs:
$1.50
Finally, we divide the remaining money by the cost of each mechanical pencil to find out how many she can buy:
$14.05 / $1.50 ≈ 9
Mallory can buy 9 mechanical pencils with the money her mom gave her.