h + c = 160
... 200 h + 200 c = 200 * 160
500 h + 200 c = 369 * 160
subtract equations to eliminate c
solve for h, then substitute back to find c
She needs to prepare 160 pounds of blended coffee beans selling for $3.69per pound. She plans to do this by blending together a high-quality bean costing $5.00 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.
2 answers
Thank you so much Scott!