Question

Sam makes $400 per week plus $20 commission on each new sell phone plan he sells. Write an equation to determine how many new plans she sold to earn $680 last week

Answer 1

She sold 14 new plans to earn $680 last week.

Explanation:

$400 + 20(x) = $680

Take 400 away from total cost. So, 680 - 400 = 280.

Now, divide 280 by 20, and x = 14.

The equation would be $400 + 20(14) = $680