John was building a new fence, and he wants it to stand 8 1/2 feet above
ground level. To make sure it is secure he must place it 2 3/4 feet into the
ground. How long of a post should John buy?

Question

John was building a new fence, and he wants it to stand 8 1/2 feet above 
ground level. To make sure it is secure he must place it 2 3/4 feet into the 
ground. How long of a post should John buy?

anonymous · Answer

turn them both into improper fractions find a common denomator add and then change it back to a mixed number

anonymous · Answer

Length of pole = 8 1/2 + 2 3/4
        17         11                   34 + 11                    45                 1
= ----- + ------  =  ----------------- = -------  11 ---- ft
        2             4                          4                            4                  4