Question

irene is making welcome bags for new students. she has already made 15 bags, and can make 7 bags per day. if there are 64 new students this year, how many days will it take for her to make exactly 64 bags? let d be the number of bags irene makes. start by writing an expression that represents the total amount of bags irene makes.

Explanation:

Step1: Identify known quantities

Irene has already made 15 bags. She makes 7 bags per day, and let \( d \) be the number of days.

Step2: Form the expression

The number of bags made in \( d \) days is \( 7d \) (since 7 bags per day times \( d \) days). The total number of bags is the already made bags plus the bags made in \( d \) days. So the expression is \( 15 + 7d \).

Answer:

\( 15 + 7d \)