Arecipe calls for 1/2 cup of ingredient a for everyone 1 2/3 cups of ingredients b how many cups of ingredients do you need when using 4 cups of ingrediente

Step-by-step explanation:

Let's assume

A be amount of ingredient A in cups

B be amount of ingredient A in cups

we are given

a recipe calls for 1/2 cup of ingredient a for everyone 1 2/3 cups of ingredients B

so, we get

now, we are given

A=4

now, we can solve for B

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