Ithought of a number, divided it by 1 1 2 , then added 2 1 2 to the result, then multiplied the sum by 1 2 3 . then i subtracted 1 2 3 and got the result 2 5 6 . what was my number?

Step-by-step explanation:

Working backwards, the addition changes subtraction and division changes to multiplication and vice versa

The numbers are and

The result is  

Adding   to   we obtain

+ =

Dividing by we obtain

Subtracting from we obtain

Multiplying by we obtain

Therefore, the number is

people grow faster than other people.

step-by-step explanation:

should you really be posting this isn't math boi.

step-by-step explanation:

we are given a graph for system of inequalities.

in order to write the system of inequalities for the given graph, we need to find the inequality for each of the line separately.

let us find the slope of dotted line first.

taking two coordinates on the graph.

let us say (0,0) and (3,1).

let us find the slope of the line now.

slope of the dotted line would be =.

y-intercept of dotted line is y=0 only.

plugging slope m= and b=0 in slope-intercept form y=mx+b, we get

.

the line is shaded up of that dotted line.

therefore, for shading up we would take greater than inequality symbol > .

and because it's a dotted line we would take only > symbol in place of = sign in above equation of line.

therefore, inequality for dotted line would be

let us take two points (3,1) and (0,4) on the solid line.

slope of the solid line would be =.

for the solid line we have y-intercept b= 4.

plugging slope m= -1 and b=4 in slope-intercept form y=mx+b, we get

y = -1x + 4.

the line is shaded down of that solid line.

therefore, for shading down we would take less than inequality symbol < .

and because it's a solid line we would take ≤ symbol in place of = sign in above equation of line.

therefore, inequality for solid line would be