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>
Answer:
23 because i know it i have done that
Step-by-step explanation:
Question:
2/3 + y - 1/9 = 7/9
y = ?
Solution:
Find A Common Denominator For 2/3 Which Is 6/9
6/9 + 2/9 = 8/9
8/9 - 1/9 = 7/9
6/9 + 2/9 - 1/9 = 7/9
Final Answer:
y = 2/9
Hope This Helps!
-EliteAnswers-
Answer:
The first one.
Step-by-step explanation:
The dots on the dot plot are mostly to the right.
Answer:
14 to 25
Step-by-step explanation:
there are 14 women and 24 people altogether
