Write an equation to represent the relationship between the time sabar walks and number of calories when he burns use x as the independent variable and use y as a dependent variable

Ineed with number 6 , explain how to get 1978

To solve the system of equations below, pedro isolated the variable y in the first equation and then substituted it into the second equation. what was the resulting equation? { 5y=10x {x^2+y^2=36

Rhombus adef is inscribed into a triangle abc so that they share angle a and the vertex e lies on the side bc . what is the length of the side of the rhombus if ab=c, and ac=b.