Question 1199892
Alloys costing  $4.5 and $9 per ounce
Mixture costing$8.10 per ounce,  amount 30 ounces


h, how much of the $9 per ounce to use
30-h, how much $4.5 per ounce to use


{{{4.5(30-h)+9h=(8.1)(30)}}}-----solve for h,...