Problem $4-17$

outside supplier. Manufacturing and purchase costs per unit are shown.

a$.$ Formulate and solve a linear programming model for this make$-$or$-$buy application. How many of each component should be manufactured and how many should be purchased?

Let

FM $=$ number of frames manufactured

$FP=$ number of frames purchased

$SM=$ number of supports manufactured

$SP=$ number of supports purchased

$TM=$ number of straps manufactured

$TP=$ number of straps purchased