Question

Tina bought some nail polish and lip gloss at the store. The nail polish cost $4.50 per bottle and lipgloss cost $7 per tube. Tina bought 9 items and spent
$50.50 how many of each item did she buy?

Answer 1

Assume all items are Lipgloss
Total Cost -> $7 x 9 = $63
difference-> $63-$50.50= $12.50
Assume that all were Lipgloss except for one item
Total Cost-> ($7x8)+$4.50= $60.50
diff-> $63-$60.50=$2.50
Number of Nail Polishes-> $12.50 diveded by $2.50 = 5
Number of Lipglosses-> 9-5=4
ANSWER:
Lipglosses:4
Nail Polishes :5