We let x = pounds of alloy that is 15% tin
The problem is modeled by the equation:
0.11(30) = 0.15x + 0.09(30-x)
The equation means that the amount of tin does not change. Also, the amount of alloy (total weight - weight of 15% alloy) is (30-x).
Solving for x:
3.3 = 0.15x +2.7 - 0.09x
.06x = 0.6
x = 10 lbs
30-10 = 20 lbs
<span>10 lbs. of the 15% alloy and 20 lbs. of the 9% alloy</span>
The area of the rectangle would be 3.368421053
This is a test so I will not give you the answer. You need to be able to do this on your own. But I will give you a hint.
FA/BF=GA/CG
Answer:
Step-by-step explanation:
6/36=1/6
Answer:
Explanation:
<u>remove parenthesis</u>
<u>expand</u>
<u>simplify</u>
