Sarah Meeham blends coffee for​ Tasti-Delight. She needs to prepare 170 pounds of blended coffee beans selling for ​$3.78 per pound. She plans to do this by blending together a​ high-quality bean costing ​$4.75 per pound and a cheaper bean at ​$2.00 per pound. To the nearest​ pound, find how much​ high-quality coffee bean and how much cheaper coffee bean she should blend.