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
Answer:
coordinates of vertex M is (x, y) = (2, -2)
Step-by-step explanation:
Since JKLM is a parallelogram, this implies that JK parallel to LM and KL parallel to JM. This means that
Slope of JK = slope of LM
And
Slope of KL = slope of JM
From equation (i) and (ii) we get
Put the value of x in equation (ii) we get
So, the coordinates of vertex M is (x, y) = (2, -2).
Do you have a picture I can’t see it my guy
Answer:
x=27
Step-by-step explanation:
The two angles are vertical angles, which means they are equal
4x+7 = 5(x-4)
Distribute the 5
4x+7 = 5x-20
Subtract 4x from each side
4x+7 -4x = 5x-4x -20
7 = x-20
Add 20 to each side
7+20 =x-20+20
27 = x
When doing something like this you want to make sure both sides are the same, so turn 7/4 into a percent. 7/4 equals 175, therefore they’re equal to each other.
