Question

suppose that a manufacturer's weekly profit in dollars is given by P= -2x raise to the second power + 240x , how many items x must be produced to realize a profit of 5,4oo pesos ?

Answer 1

\[-2x^2+240x=5400\]
\[-2x^2+240x-5400=0\]
\[x^2-120x+2700=0\]
\[(x-90)(x-30)=0\]
\[x=90\text{ or } x=30\]

Answer 2

is this the right answer ?

Answer 3

the answer is as right as the question :)