Question

Explain step by step please!

Thirty copies of a textbook weigh a total of 75lb. What is the weight of each book?

Answer 1

2.5lb

Step-by-step explanation:

In equation form the question is asking for x in

`30(x) = 75`

Since multiplication is reversible (to be division), we can switch the equation up.

`75` ÷
`30 = x`

So the answer is

`75` ÷
`30 = 2.5`

Answer 2

Each book weighs 2.5 pounds.

Step-by-step explanation:

75/2.5 is 30. Or you could also get the answer by 30* 2.5 which it would be 75. So, therefor, the answer is 2.5.