What's the volume of this rectangular prism?

40 cubic centimeters.

Step-by-step explanation:

We know that the volume of a rectangular prism = Length x width x height

In the given picture , the dimension of the rectangular prism is 4 cm by 5 cm by 2 cm.

i.e. Length =4 cm , width = 5 cm , and height = 2 cm.

Now , by using the formula , we have

Volume of rectangular prism =

Hence, the volume of this rectangular prism is 40 cubic centimeters.

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so: