Question

the library needs at least 15 people to sign up for an event in order to run it. currently, 3 people have signed up, and the library expects 2 more people to sign up each day. after how many days will the library be sure it can run the event? write an inequality that could be used to solve this problem. (1 point)

• $3d + 2 \leq 15$, where $d$ is the number of days.
• $2d + 3 \leq 15$, where $d$ is the number of days.
• $3d + 2 \geq 15$, where $d$ is the number of days.
• $2d + 3 \geq 15$, where $d$ is the number of days

Explanation:

Step1: Define total sign-ups

Total sign-ups = initial + daily sign-ups: $3 + 2d$

Step2: Set inequality for minimum requirement

Need at least 15 sign-ups: $3 + 2d \geq 15$

Answer:

D. $2d + 3 \geq 15$, where $d$ is the number of days