Question

While on vacation, Rosa stopped at a souvenir shop to buy

keychains and refrigerator magnets for family members and
friends. Keychains cost $2 each, and refrigerator magnets cost $1
each. Let x represent the number of keychains that Rosa bought,
and let y represent the number of refrigerator magnets.
Rosa bought 12 items and paid $18 more for the keychains than
for the refrigerator magnets.

Answer 1

9514 1404 393

Answer:

• 10 keychains
• 2 magnets

Explanation:

We assume you want to know how many of each item Rosa bought.

The problem information lets us write two equations:

x + y = 12

2x - y = 18

Adding the two equations, we get ...

3x = 30

x = 10 . . . . . divide by 3

y = 12 -x = 2 . . . find y

Rosa bought 10 keychains and 2 magnets.