Answer:
Step-by-step explanation:
So we have the equation:
First, distribute the left side:
Add values on the left side:
Add 7 to both sides. The right side cancels:
Subtract 2x from both sides. The left side cancels:
Divide both sides by -6:
Therefore, x equals -3.
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.