Question

a certain type of laminated glass consists of two outer layers of glass each 2.50 mm thick and an inner layer of adhesive that is 0.38 mm thick. what is the total thickness of this type of glass? the total thickness of this type of glass is mm. (type an integer or a decimal.)

Explanation:

Step1: Calculate thickness of outer - glass layers

There are two outer - glass layers, each 2.50 mm thick. So the total thickness of outer - glass layers is $2\times2.50$ mm.
$2\times2.50 = 5$ mm

Step2: Add thickness of adhesive layer

The adhesive layer is 0.38 mm thick. Add this to the thickness of outer - glass layers.
$5 + 0.38=5.38$ mm

Answer:

5.38