The volume of prism Ais 72 cubic units, and the volume of prism A is twice the volume of prism B. What is the value of a? Geometry please help

a = 12

Step-by-step explanation:

Volume = lwh

PRISM A

4 * 3 * x = 72

12x = 72

x = 6

PRISM A * 2 = PRISM B

4 * 3 * a = 72 * 2

12a = 144

a = 12

1010: 3030

is it i think

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