X.3 Evaluate two-variable equations: word problems

YJT
This equation shows how the total number of pieces Cole knows how to sing depends on the number of weeks he takes voice lessons.

p = w + 34

The variable w represents the number of weeks he has taken voice lessons, and the variable p represents the total number of pieces he has learned. After 28 weeks of voice lessons, how many pieces will Cole be able to sing, in total?

1 answer

To find out how many pieces Cole will be able to sing after 28 weeks of voice lessons, we can substitute \( w = 28 \) into the equation \( p = w + 34 \).

Substituting \( w \) into the equation:

\[ p = 28 + 34 \]

Now, calculate the total:

\[ p = 62 \]

Therefore, after 28 weeks of voice lessons, Cole will be able to sing a total of 62 pieces.