Alexis is knitting a blanket 2 meters long. every 2 decimeter, she changes the color of the yarn to make stripes. how many stripes will the blanket have? explain

Convert 2 meters into decimeters. move the decimal over one places.

2m=20 decimeters. 20 decimeters of blanket divided by 2 decimeters of color per stripe (20/2)= 10 stripes.

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