Question

The science class is taking a trip to the science center. there are 20 students and an unknown number of adult chaperones going. the bus holds at most 35 people.what is the greatest number of adults who can chaperone? I know the answer is 15. however, what they want us to do is create an equation using inequalities (<, >, etc..) That's what I don't know how to do with this problem. I'm trying to explain it to my daughter but I don't know how to do it myself.

Answer 1

We are given that there are 20 students and an unknown number of adult chaperones.

Let x denotes the unknown number of adult chaperones.

The bus holds at most 35 people

We know that 20 students plus x number of adult chaperones should be at most 35

at most 35 means equal or less than 35

So we can write

`20+x\le35`

Now we can easily solve for x

`\begin{gathered} 20+x\le35 \\ x\le35-20 \\ x\le15 \end{gathered}`