A construction crew is pouring concrete to make a floor in a building. The weight of the concrete is proportional to the volume of concrete that has been poured. After pouring 5 cubic feet they know the weight of the concrete is 740 pounds.
(b). The crew wants to create an equation of the form w=k*v to calculate the weight of the concrete based on its volume in cubic feet. What is the value of k in this equation? explain​