Why are basic facts needed when dividing large numbers

Some basic division facts are needed to follow for dividing numbers. The repeated subtraction of the same number is expressed by division in short form and long-form. Share 12 pencils between 2 children. This means 12 pencils have been divided into 2 groups of 6 pencils.

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is