Question

Lea needs at least $240 to buy new headphones. She has already saved $30. She earns $14 per car that she washes.

What is the least number of cars she can wash to buy the headphones?

Answer 1

Lea needs to wash at least 15 cars.

Explanation:

30+14c≥240

-30 -30

14c≥210

÷14 ÷14

c≥15

Answer 2

since she already has 30 then she will need to wash 15 more cars.

Explanation:

Hope this helps!