The length of the blue ribbon is two-thirds the length of the red ribbon. Write an equation to find the length r of the red ribbon.

Respuesta :

The equation to find the length r of the red ribbon is:

[tex]r = \frac{3b}{2}[/tex]

Solution:

Let "b" be the length of blue ribbon

Let "r" be the length of red ribbon

To find: equation for length r of the red ribbon.

The length of the blue ribbon is two - thirds the length of the red ribbon

Which means,

[tex]\text{Length of blue ribbon } = \frac{2}{3} \times \text{ length of the red ribbon }[/tex]

Therefore,

[tex]b = \frac{2}{3} \times r\\\\3b = 2r\\\\r = \frac{3b}{2}[/tex]

Thus the equation to find the length r of the red ribbon is found

an equation to find the length r of the red ribbon is [tex]r = \frac{3b}{2}[/tex] , where b is the length of blue ribbon.

Step-by-step explanation:

We have , The length of the blue ribbon is two-thirds the length of the red ribbon. Let length of red ribbon is r cm , than length of blue ribbon is  two-thirds the length of the red ribbon i.e. [tex]\frac{2r}{3}[/tex] .

Length of red ribbon = r cm

Length of blue ribbon = b = [tex]\frac{2r}{3}[/tex] cm

⇒ Length of blue ribbon = b = [tex]\frac{2r}{3}[/tex] cm

⇒ b = [tex]\frac{2r}{3}[/tex]

⇒ [tex]r = \frac{3b}{2}[/tex]

Therefore, an equation to find the length r of the red ribbon is [tex]r = \frac{3b}{2}[/tex] , where b is the length of blue ribbon.