Question

Carla currently has $300 in her bank account. Each time she goes to the ATM,

she withdraws $20. Write an equation representing this situation:

Answer 1

y = -20x + 300

Explanation:

y is total amount of money left (because this is the answer we are trying to find.)

x is the amount of times she goes to the ATM (because this is our unknown variable.)

-20 multiplies by x because she loses $20 every time she goes to the ATM. The equation has + 300 because she already has $300 in her bank account.