Question

A new window is to be made of panels of recycled glass bottles. If 2/7 of the panels are made from blue bottles and 1/3 are made from green bottles, how many of the panels are made from other recycled glass?

Answer 1

8

Explanation:

`Answer=1-((2)/(7) +(1)/(3))\\Answer=1-((6)/(21) +(7)/(21) )\\Answer=(21)/(21) -(13)/(21) \\Answer=(8)/(21)`

Assuming there are 21 panels, your answer is 8