The product of two perpendicular slopes is always -1
Answer:
1
Step-by-step explanation:
Answer:
Surface Area = 82.8 square meters
Volume = 37.96 cubic meters
Surface area:
6 × 2 = 12
9 × 2 = 18
8.8 × 6 = 52.8
12 + 18 + 52.8 = 82.8
Volume:
6 × 2 × 9.49 = 113.88
113.88 ÷ 37.96
Answer:
$38.31
Step-by-step explanation:
Given:
Pure silver that cost $33.48 per ounce used to form $24.35 alloy/ounce.
Question asked:
How many ounces of pure silver were used to make an alloy of silver costing $27.87 per ounce?
Solution:
At cost $24.35/ounce, pure silver is mixed = $33.48
At cost $1/ounce, pure silver is mixed = 
At cost $27.87/ounce, pure silver is mixed = 

Thus, $38.31 ounces of pure silver were used to make an alloy of silver costing $27.87 per ounce.