The Sixth-Graders at Meadowbrook Middle School Are Going On A Field trip. The 325 students and adults will ride in school buses. Each bus holds 48 people. How many school buses are needed?

Remember that you can do anything to an equation as long as you do it to both sides so

we find how many buses needed

so basically we need at least 325 people spaces

1 bus=48 people spaces

therefor

how many buses = 48 times number of busses > 325

(> means 'is greater than or equal to')

so 48 times number of busses > 325

divide both sides by 48

number of busses > 325/48

325/48=6 and 37/48

number of busses > 6 and 37/48

the number of busses has to be greater that 6 and 37/48

number of busses also has to be a whole number

(imagine renting a fractional bus, "Ok, so I need 6 and 37/48 busses. No, I don't want 7 busses, that'll cost extra. Yes, I know what I'm doing. What?! You can't? Why?! You people are so incompetent. Of course I don't want to rent 7 busses. Were just going in circles. Have a nice day! * hangs up*")

so therefor we round 6 and 37/48 up to 7 busses

the answe ris 7 busses

We divide 325 by 48.

The answer comes out to 6.77

But since the number of buses must be a whole number, we will need 7 buses to carry the 325 students and teachers on a field trip.