574.54-396.23= 178.31
So Y=178.31
Answer:

Step-by-step explanation:
In this exercise, we have two equations, namely:

And we are asked to solve this problem by graphing. In this way, we can write a system of linear equations in two variables, but first of all, let's rewrite:

Then:

So here we have two lines.
The first one is:

This line passes through the origin and has a slope 
The second one is:

This line has a slope
and cuts the y-axis at 
By using graph tools, we get the graph shown below, then:

49 divided by 3 = 16.33
Each sibling has about 16 rare coins.
Answer:
i can agree with that muhahaha
Step-by-step explanation: