Find the values of x (there are two) when the ratio of the area of the shaded portion of the figure to the total area of the figure is 15.75/48.

Find the values of x there are two when the ratio of the area of the shaded portion of the figure to the total area of the figure is 157548 class=

Respuesta :

The values of x are x = -0.77 and x = 3.27

How to determine the value of x?

To calculate the value of x. we start by using the following equivalent ratio

2x : (3.5 + x + 1.5) = x + 0.5 : x + 1.5

Evaluate the like terms

2x : (5 + x) = x + 0.5 : x + 1.5

Express the ratio as a fraction

2x/5 + x = x + 0.5/x + 1.5

Cross multiply

2x(x + 1.5) = (5 + x)(x + 0.5)

Open the brackets

2x^2 + 3x = 5x + 2.5 + x^2 + 0.5x

Evaluate the like terms

x^2 - 2.5x - 2.5 = 0

Using a graphing calculator, we have

x = -0.77 and x = 3.27

Hence, the values of x are x = -0.77 and x = 3.27

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