Once a large pink​ ribbon, the sign of the fight against breast​ cancer, was erected out of pink​ post-it note… ... If the area of the rectangular billboard covered by the ribbon was approximately 3480 square​ feet, and the width of the billboard was approximately 58 ​feet, what was the height of this​ billboard?

idk

step-by-step explanation:

payback

1

x = 1

step-by-step explanation:

0 ÷ x = 0

0 ÷ 1 = 0

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15