How do I write a system of inequalities based on a maximum of 480 people on a bus and for every 8 kids, one adult is needed?

How to set up the variables and write the system of inequalities.

1 Answer
May 2, 2018

Here's how I did it:

Explanation:

Maximum means that everything must be equal to or less than the number. So the number of people on the bus must be equal to less than (#<=#) #480#.

We need one adult per #8# kids, so let's let #x# be the number of adults.

The inequality then becomes:
#8x <= 480#

Extra:
If you want to solve this you just divide both sides by #8#, and you should get #x <= 60#.