Question

Write and solve an equation to find the answer?

Beth learns to perform 2 vocal pieces during each week of lessons. After 5 weeks of voice lessons, how many pieces will Beth be able to sing, in total? Write and solve an equation to find the answer.

Answer 1

`f(w)=2w`;
`f(5)=2(5)=10` songs.

Explanation:

If Beth learns two vocal pieces every week, than the number of songs she has learned can be expressed as `2`, `w` times, where `w` is the number of weeks she has been learning pieces. Expressed formulaically,

`f(w)=2w`, where `f(w)` is the number of pieces Beth has learn after `w` weeks.

To find how many pieces she has learned after five weeks, we can plug `5` into our formula, which gives us

`f(5)=2(5)=10` songs.