Question

Cheryl has $100 on her subway gift card. Each week she buys the same lunch for $10. She wants to continue using the card until the balance remaining is $40. Write an equation to represent the situation

Answer 1

In 6 weeks she will have $40.

Explanation:

$100 - $10 - $10 -$10 - $10 - $10 - $10.

Or $100 - $60.

Answer 2

100-60=40

Explanation: