Question

Mary is
x years old. Write an
algebraic expression for each of the
following
(a) Three times Mary's age next year.
(b)five times Mary's age six years ago.
(C) The present age of Mary's aunt if her aunt
is four times as old as Mary will be 2 years from now.
(d) The present age of Mary's niece if her niece
is 3years less
less than one-third
Mary's age 5 years ago.

Answer 1

Step-by-step explanation:

(a) 3(x+1)

(b) 5(x-6)

(c)

Let Aunt's present age be y

Mary's age after 2 years = x+2

So, y = 4(x+2)

(d)

Let Niece's present age be n

$n = ( \frac{1}{3} \: (x - 5)) - 3$