Answer:
Hey I might know-
Try the the bottom left one
5+(-7)+1/3+(-2/3)
M=f+240
m+f=25000, using m from above in this equation gives you:
f+240+f=25000 combine like terms on left side
2f+240=25000 subtract 240 from both sides
2f=24760 divide both sides by 2
f=12380, and since m=f+240
m=12620
So there are 12620 males and 12380 females in the city.
Ok, so you do regular multiplication with it, and when you have your final answer, you count the number of places behind the decimal place there are in the original numbers, and put the decimal point there. the answer is 0.049056
Answer:
The two lines intersect (in other words, they have a common meeting points)
Step-by-step explanation:
Thinking process:
A linear equation takes the form of 
where , m = gradient
c = y-intercept (point where the line cuts the y-axis)\
Suppose we have these two linear equations: 
We can find the point of intersection by solving the two equations simultaneously like this:
sub y = 2x + 4 into equation (2) gives:
2(2x+4) = -6x -1
solving yields
- 0.9
Substituting x= -0.9 into equation 1 yields:

y = 2.2
In terms of the Cartesian coordinates (x, y) the point of intersection will be (-0.9, 2.2)
Hence, the point of intersection is a solution of two linear equations.