Question 235618
In a school zone, cars cannot go more than 20 miles per hour.


If you let x = the speed that the cars are allowed to go, then your equation becomes:


x <= 20 


This means that x is smaller than or equal to 20 which means that the speed of the cars cannot exceed 20 miles per hour.


The common conventions are:

le means less than or equal to
ge means greater than or equal to
gt means greater than
lt means less than
eq means equals


In symbols, if you use the following, it should be understood


= implies equals
>= implies greater than or equal to
<= implies less than or equal to
> implies greater
< implies less than


The algebra.com formula generator program will take these symbols and make the following out of them:


x = y becomes {{{x = y}}}
x > y becomes {{{x > y}}}
x < y becomes {{{x < y}}}
x >= y becomes {{{x >= y}}}
x <= y becomes {{{x <= y}}}