I just can't do this problem, plz help!

Much thanks to anyone who helps!

Guest Mar 4, 2019

edited by
Guest
Mar 4, 2019

#1**+1 **

Break-even point is where R(h) = C(h)

So

10 + 30h = 5h^2 - 25 subtract 10, 30h from both sides

0 = 5h^2 - 30h - 35 divide both sides by 5

h^2 - 6h - 7 = 0 factor

(h - 7) ( h + 1) = 0

Set each factor to 0 and solve for h and we get that h = 7 or h = -1

Only the first answer makes sense.....so h = 7 (hours)

CPhill Mar 4, 2019