Question

Mr.Frame bought a tennis racquet stringing machine for $480. He uses it to sting racquets for local players. On average, he spends $8 per racquet on string. He then charges $20 to complete the string job. How many racquets will he need to striing before he breaks even

Answer 1

25 racquets

Explanation:

Ok, so the equation would be y = 20x - 8, because he loses $8 for every racquet. So plug in 480 for y: 480 = 20x - 8 then solve for x. The answer is 24.4, and since there can not be a fraction of a racquet so you just round up to 25.