Positive profits. The monthly profit P (in dollars) that Big Kurt makes on the sale of x mobile homes is determined by the formula . For what values of x is his profit positive?
That is x sqared
P= x^2 +5x - 50
2006-06-09 21:28:29 · 5 answers · asked by concrete water 3 in Science & Mathematics ➔ Mathematics
P=x^2+5x-50
P=(x-5)*(x+10)
if x=5 then
P=(5-5)*(5+10)
P=0*15
P=0
so x has to be greater than 5
x = >5
2006-06-09 21:42:06 · answer #1 · answered by tin knocker al 3 · 9⤊ 1⤋
To break even, P must be 0. Make P=0, take care of the square and square root and you get 5 mobile homes to break even. So, to make a profit, you sell 6 mobile homes, assuming nobody wanna buy half.
2006-06-10 04:36:06 · answer #2 · answered by Anonymous · 0⤊ 0⤋
P is positive for values of x greater than 5. When x = 5, profit would equl cero. THefore, for profits to be positive, KIrt would have to sell more than five mobile homes. Hope this helps.
2006-06-10 04:47:09 · answer #3 · answered by azoteman_213 1 · 0⤊ 0⤋
if P=0 then
the roots are -10 and 5
For -10
Answer: x must be greater than 5
2006-06-10 05:33:38 · answer #4 · answered by iyiogrenci 6 · 0⤊ 0⤋
X>5 , you need to complete the square and solve for X.
when you do that X=5, which is the point of breaking even...
2006-06-10 04:36:04 · answer #5 · answered by Frank M 1 · 0⤊ 0⤋