When Ryan was born, he weighed 7 pounds. At 6 months, he weighed 11.2 pounds. Amanda weighed 6 pounds when she was born, and 12.9 pounds at 6 months. Which baby had a greater percent increase in weight? Explain.

Amanda had a greater percent increase in weight

Step-by-step explanation:

The percent change in Ryan’s weight was 4.2 /7

, or 60%. The percent change in Amanda’s weight was 6.9 /6

, or 115%.

Sample

The percent change in Ryan’s weight was 4.2

7

, or 60%. The percent change in Amanda’s weight was 6.9

6

, or 115%. Amanda had a greater percent increase in weight.

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