If you want to subtract 3/7 from 12, how should you rename 12?

You could do 12/1 and change the denominator to 7 and make it 84/7 - 3/7 = 81/7

It becomes 84/7 because 1 x 7 = 7 and you need to multiply the numerator too.

Step-by-step explanation:

00

step-by-step explanation:

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