At a football stadium, 20% of the fans in attendance were teenagers. If there were 120 teenagers at the football stadium, what was the total number of
people at the stadium?

600

Step-by-step explanation:

10%= 60 people

Multiply 60x10 to reach 100%

100%= 600 people

3x + 4y -25 =0 represents the amount of change sianna should recieve

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