Here are two similar solid toys. А
B
The ratio surface area of toy A : surface area of toy B is 7:9
The volume of toy B is 20 cm
Work out the volume of toy A.
Give your answer correct to 3 significant figures.

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

5+2x=a

asdasdsaadsaddsasds

246

step-by-step explanation: