At the swim club, what is the ratio of men to all members? 400 men, 300 women, 100 children

400 men:800 members

Step-by-step explanation:

There is 400 mean so you would put 400 men first then you add 400+300+100=800 and that is all the members so it would be 400 men:800 member

400 to 800 or 1 to 2

Step-by-step explanation: There are 400 men in total so you know that is the number of men for the ration and then you count everyone for the people in this ratio. Remember... men count as part of everyone. After adding the men women and children you get 800 so it comes to 400:800 or simplified 1:2

(0,-3) see attached graph

step-by-step explanation:

a. to solve the system, graph the two equations.

x = y+3 becomes y=x-3 has m=1/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move up 1 unit and 1 unit to the right. plot a point and connect.

y=-4x+3 has m =-4/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move down four units and to the right 1 unit. plot a point and connect.

the solution is the point (x,y) where the two lines intersect. by the graph below it is (0,-3).

b. to solve by substitution, substitute y = -4x-3 into x= y+3

x= (-4x-3) +3

x=-4x

5x=0

x=0

now substitute x = 0 back in to find y.

y= -4(0)-3

y=0-3

y=-3

solution is (0,-3)

c. use elimination by adding the equations together.

x-y=3

4x+y=-3

5x=0

x=0

then substitute into one equation to find y.

y=-4(0)-3

y=-3