Question

If c is equal to the sum of a and twice b, which of the following is the average (arithmetic mean) of a and c?
(a) c
(b) a + b
(c) a
(d) b
(e) a +c

Answer 1

c=a+2b

Answer 2

The average of a and c would be
\[ \large \frac{a+c}{2}= \]

Answer 3

yeah how do i solve that

Answer 4

just plug in the value of c

Answer 5

\[ \large \frac{a+c}{2}=\frac{a+(a+2b)}{2}= \]

Answer 6

oh is see is it (b) a + b?

Answer 7

yes

Answer 8

ok thank you