Formulate but do not solve the problem The Coffee Shoppe sells a coffee blend made from two coffees, one costing $6/lb and the other costing /ib. If the blended coffee sells for $6.20/b, find how much of each coffee is used to obtain the cesared blend. Assume that the weight of the blended coffee is 100 tb. (let Xandy denote the number of pounds of the 5t/ib and $7/ coffees, respectively 100 -620 Need Help? Red 1-/1 Points) DETAILS TANAPMATH7 5.2.038 MY NOTES ASK YOUR TEACHER PRACTICE ANOTHE Solun the system of linear equations using the Gauss-Jordan elimination method. 3x + y = -7% - 2 Need Help? Heti (-/1 Points DETAILS TANAPMATH7 5.2.039. MY NOTES ASK YOUR TEACHER PRACTICE ANOTH solve the system of linear equations using the Gauss-Jordan elimination method. 2x - 3y = -17 x + y = -27 Need Help