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The width of a
rectangle is 6 cm. Its
area is (6×+18) square
cm. Write an expression
for its length. If × is 2
what is the length of
the rectangle?

Respuesta :

facundo3141592

The expression to get the length is:

L = (x + 3)cm

And when x = 2, the length is 5 cm.

How to get an expression for the length?

Remember that for a rectangle of length L and width W, the area is:

A = L*W

In this case, we know that W = 6cm and the area equation is:

A = L*6cm = (6*x + 18)cm^2

Solving that for L:

L = (6*x + 18)cm/6

L = (x + 3)cm

That is the expression to get the length.

If x = 2, then we replace the variable x by 2 in the above expression so we get:

L = (2 + 3)cm  =5cm

If you want to learn more about rectangles:

https://brainly.com/question/17297081

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