Question

a certain type of laminated glass consists of two outer layers of glass each 3.50 mm thick and an inner layer of adhesive that is 0.34 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 outer - layer thickness sum

There are two outer - layer glasses each 3.50 mm thick, so the sum of outer - layer thickness is $2\times3.50$.
$2\times3.50 = 7$

Step2: Add inner - layer thickness

Add the thickness of the inner - layer adhesive (0.34 mm) to the sum of outer - layer thickness.
$7 + 0.34=7.34$

Answer:

7.34