Please help me this is my final!!!
2 answers:
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Answer:
0.4kg, 1.4kg and 1.8kg
Step-by-step explanation:
Given parameters:
Mass of alloy = 3.6kg
Ratio of elements in the alloy = 2:7:9
Unknown:
Mass of each element in the alloy = ?
Solution:
To find the mass of each element in the alloy, first find the sum of the ratio;
2+7+9 = 18
Mass of nickel = x 3.6 = 0.4kg
Mass of zinc = x 3.6 = 1.4kg
Mass of copper = x 3.6 = 1.8kg
The mass of each metal is 0.4kg, 1.4kg and 1.8kg
The initial weight is given by:
Then, we add a second weight:
Finally, we add a third weight:
Adding the three added weights, we can find the total weight.
We have then:
The total weight is:
Answer:
eddie now has
ounces on his line
Then, we add a second weight:
Finally, we add a third weight:
Adding the three added weights, we can find the total weight.
We have then:
The total weight is:
Answer:
eddie now has