CC9 Solve a system of equations using substitution: word problems 9MB Learn with an example or Watch a video O Write a system of equations to describe the situation below, solve using substitution, and fill in the blanks. The freshman and sophomore classes at Hillsdale High School are decorating floats for homecoming. The freshmen have already spent $156 on their float, plus they need to buy floral sheeting that costs $100 per roll. The sophomores, who have spent $226 so far on theirs, still need to purchase vinyl grass at $30 per roll. Both classes plan to buy the same number of rolls, since they have the same area to cover. By coincidence, the two floats will have the same total cost in the end. How much will each class spend in total? How many rolls will each class be buying? The two classes will have each spend $ in total by buying rolls. You​
