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 Answer Is Nine, Because :
A Coefficient Is <span>A number used to change a variable.</span>
How many times bigger is the right triangle than the left triangle?
A side on the right triangle is 15. The same side on the left triangle is 10. 15/10=1.5.
No matter what side you choose on the right triangle and divide it by the corresponding side of the left triangle, you get the same answer: 1.5.
So, the right triangle is 1.5 times larger than the left triangle. This is the scale factor.
What is 1.5 in fraction form?
The answer is left as an exercise for the reader.
