Question

16. write a fraction that represents the weight of glass and granite in the bridge compared to the total weight of the materials in the bridge

Answer 1

The first thing we need to do is sum the weight of the materials in the bridge​, so we have that

`1000\text{ tons + 400 tons + 200 tons = 1600 tons}`

Now we have that the weight of glass and granite in the bridge is 200 tons, so the fraction is

`(200)/(1600)=\text{ }(2)/(16)=(1)/(8)`

So the answer is 1/8.