## Question

###### (6 pts) Bart has money invested in Iwo funds: stock fund and bond fund. Last year the stock find paid 8"_ the bond fund paid 2% and he received S780 This year the stock fund paid 10%. the bond fund paid 1% and he received S810. How much money does he have in cach fund? You must define two variables (write them down: Let T amount at 8%" . etc_ set up syslem of two linear equations in these variables. solve the system by hand, and write the solution in complete sentence(6 pts) A minor le

(6 pts) Bart has money invested in Iwo funds: stock fund and bond fund. Last year the stock find paid 8"_ the bond fund paid 2% and he received S780 This year the stock fund paid 10%. the bond fund paid 1% and he received S810. How much money does he have in cach fund? You must define two variables (write them down: Let T amount at 8%" . etc_ set up syslem of two linear equations in these variables. solve the system by hand, and write the solution in complete sentence (6 pts) A minor league baseball stadium has 7000 seats. Box seats cost S6, grandstand seats cost $4 and bleacher seats cost S2 When all seats are sold, the revenue is S26.400. The number ofbox seats is one-third the number of bleacher seats_ How many seats of each type are there? You must define three variables (write them down: "Let x = box seats' etc ) , set up system of three linear equations in these variables. solve the syslem by hand. and wrile the solution in complete sentence Note: Do not define your variables by saying "x =6,y=4,2-27 (12 pts) Given the following matrices: A = [5 8=[ & cl; perform each of these matrix operations or stale why it can be done: 2A 3C = AB = (8 pts) Use the method of matrix inverses t0 solve the following system. You must invert the coefficient matrix by hand and then solve the system to get all of the points_ 3x + 2y 62 = 3 x+y+22 = 2 2x + 2y + S2 = 0