SOLUTION: -15p is less than or equal to -90

Question 24216: -15p is less than or equal to -90
Found 2 solutions by elima, kev82:
Answer by elima(1433) (Show Source): You can put this solution on YOUR website!

Divide both sides by -15;

=)
Answer by kev82(151) (Show Source): You can put this solution on YOUR website!
Hi,
Hopefully you've spotted elima's deliberate mistake :o. To see that their solution is wrong take . Zero is not less than minus 90.
The golden rule to rember about inequalities is that when you multiply or divide an inequality by a negative number, you have to flip the inequality the other way round. To understand why, draw a few inequalities on a number line and then multiply by -1.
So let's give it a go, remebering the important rule.

And there's your answer, don't forget to try a few numbers to check your answer.
Hope that helps
Kev
RELATED QUESTIONS
5sinx=4.33 where 0� is less than or equal to x less than or equal to 90�, find x to the... (answered by stanbon)
Show that 3h + 5b is less or equal to... (answered by Fombitz)
fifteen less than twice a number is equal to... (answered by Alan3354)
-8 is less than or equal to 3r-1 is less than or equal to... (answered by stanbon,okpuente)
-5 is less than or equal to 2x-3 is less than or equal to... (answered by ReadingBoosters)
2 is less than or equal to 3x-10 is less than or equal to... (answered by Alan3354)
what is -1 less than or equal to 8x+2 less than or equal to 3 (answered by mccravyedwin)
of 200 golf scores during a city tournament,32 are less than or equal to 90. what is the... (answered by stanbon)
if sinx=2/5, where 0 less than or equal to x less than or equal to 90�. without using... (answered by Alan3354)