Martin is making pancakes for breakfast. He needs 2.5 cups of flour for every cup of milk to make the pancakes. He has 1 1/2 cups of milk, how much flour will he
need? (Express your answer as a decimal and a mixed number)

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204

1st part is 64,000,000

2nd part 500,000

step-by-step explanation:

inverse operation of addition