The length of a yearbook is 10 inches. The top margin is 1/2 inches and the bottom margin is 3/4 inch. What is the length of the page inside the margins?

The length of the page inside the margins=8 3/4 inches

Step-by-step explanation:

The total length of the year book can be expressed as;

L=l1+l2+l3

where;

L=Total length of yearbook

l1=top margin length

l2=inside margin length

l3=bottom margin length

In our case;

L=10 inches

l1=1/2 inches

l2=unknown

l3=3/4 inches

replacing;

10 = (1/2) + l2 + (3/4)

(1/2) + (3/4) + l2=10

(5/4) + l2=10

l2 = (10) - (5/4)

l2=8 3/4 inches

The length of the page inside the margins=8 3/4 inches