Mrs. williams is deciding between two field trips for her class. the science center charges $135 plus $3 per student. the dino discovery museum simply charges $6 per student. for how many students will the science center charge less than the dino discovery museum?

Set it up like a regular equation. I used:


As you can see, however, I inserted the "less than" symbol rather than the equal sign because values greater than a certain value can also equal "x". Solve it like a normal equation and you will arrive at:



This means that, as long as x is greater than 45, "6x" will be greater than "3x+135". Thus, if you bring 46 students, the Science Center will cost less.

All you have to do is multiply