Anna has $45 to spend on felt to make banners for an upcoming game. Gold felt costs $5 per yard and blue felt costs $4 per yard. Anna needs at least 7 yards of felt to make the banners. Which is a solution for this situation?
For this case you must make a system of equations that suits the situation you want to solve. We have then: x: Gold felt y: Blue felt Writing the system of equations: x + y> = 7 5x + 4y = <45 Solving the system of equations: Step 1: Multiply equation 1 by -4 -4x -4y = -28 5x + 4y = 45 Step 2: add equations: x = 45-28 x = 17 Clearing y: y = 7-x = 7-17 = -10 y = -10 answer You can buy between 7 and 9 Gold felt
