All changes saved 15. Ally is making matching aprons for her mother and herself for Mother's Day. The pattern uses 2 yards of
fabric to make the aprons. The fabric costs $7.79 per yard. She also bought a trim for the aprons. She
bought the entire spool for $12.74. How much will Ally spend on the fabric and trim to make the aprons?
n the fabric

answer: sorry i can't you.

step-by-step explanation:

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