To write the sentence "103 equals 21 divided by \( q \)" as an equation, we need to translate the words into mathematical symbols. The word "equals" translates to the equal sign "=", and "divided by" translates to the division operator "/". Therefore, the equation can be written as \( 103 = \frac{21}{q} \).
Step 1: Write the Equation
We start with the verbal statement "103 equals 21 divided by \( q \)". This can be translated into the mathematical equation:
\[
103 = \frac{21}{q}
\]
Step 2: Rearrange the Equation
To isolate \( q \), we can rearrange the equation. Multiplying both sides by \( q \) gives:
\[
103q = 21
\]
Step 3: Solve for \( q \)
Next, we divide both sides by 103 to solve for \( q \):
\[
q = \frac{21}{103}
\]
Final Answer
Thus, the solution for \( q \) is:
\[
\boxed{q = \frac{21}{103}}
\]