A department within a firm has one machine that can work one $10-$ hour shift, $280$ ?days a year. The following table has total expected annual demand for three new products. How many machines will the department need, in order to support the annual demand of these three products?

?

Product Annual Demand Standard Processing Time per Unit $($ hr $)$ ?Processing Time Needed $($ hr $)$

$130082,500$

$265063,000$

$350041,500$

?

Tip: Processing time needed is the annual demand x standard processing time per unit. Sum up the annual processing time for all three products. Then divide by the amount of time available on one machine. The result tells us how many machines are needed. Round up to the nearest whole number.