Respuesta :

A = .5 base • height.
200 = .5•12 •5x
200 = 6 • 5x
200 = 30 x
6 2/3 = x

Answer:

[tex]x=\frac{20}{3}[/tex]

Step-by-step explanation:

The area of the given triangle is 200 ft^2

The base of the triangle is 5x

Height of the triangle is 12 feet

The formula for the area of the triangle is [tex]\frac{1}{2} \cdot base \cdot height[/tex]

replace base and height in the area of the triangle formula

Area =[tex]\frac{1}{2} \cdot base \cdot height[/tex]

[tex]200=\frac{1}{2} \cdot 5x \cdot 12[/tex]

[tex]200=\frac{1}{2} \cdot 60x [/tex]

[tex]200= 30x[/tex]

divide both sides by 30

[tex]\frac{200}{30} =x[/tex]

[tex]x=\frac{20}{3}[/tex]