Question

A birch tree that is 4 ft tall grows at a rate of 1 ft per year. A larch tree that is 6 ft tall grows at a rate of 0.5 ft per year.
Let the variable t represent time in years and h represent height in feet. In how many years will the trees be the same height?

Which system of equations can be used to solve this problem?

A.{h=4-t
{h=6-0.5t

B.{h=5t
{h=6.5t

C.{h=1+4t
{h=0.5+6t

D.{h=4+t
{h=6+0.5t

Answer 1

After 4 years 4+x=6+1/2x

Answer 2

Answer: D. {h=4+t

                   {h=6+0.5t