Question

A family has an annual income of $34,500. How much is their monthly income?Their monthly income is $ ? .

Answer 1

Let:

A = Annual income

M = Monthly income

N = Number of months in the year

So, the annual income will be given by the monthly income multiplied by the number of months:

$\begin{gathered} A=N\cdot M \\ 34500=12M \end{gathered}$

Solve for M:

Divide both sides by 12:

$\begin{gathered} \frac{34500}{12}=\frac{12M}{12} \\ 2875=M \\ M=2875 \end{gathered}$

Answer:

$2875