document.write( "Question 24216: -15p is less than or equal to -90 \n" ); document.write( "
Algebra.Com's Answer #12908 by kev82(151)\"\" \"About 
You can put this solution on YOUR website!
Hi,\r
\n" ); document.write( "\n" ); document.write( "Hopefully you've spotted elima's deliberate mistake :o. To see that their solution is wrong take \"p=0\". Zero is not less than minus 90.\r
\n" ); document.write( "\n" ); document.write( "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.\r
\n" ); document.write( "\n" ); document.write( "So let's give it a go, remebering the important rule.\r
\n" ); document.write( "\n" ); document.write( "\"-15p%3C=-90\"\r
\n" ); document.write( "\n" ); document.write( "\"%28%28-15%29%2F%28-15%29%29p%3E=%28-90%29%2F%28-15%29\"\r
\n" ); document.write( "\n" ); document.write( "\"p%3E=6\"\r
\n" ); document.write( "\n" ); document.write( "And there's your answer, don't forget to try a few numbers to check your answer.\r
\n" ); document.write( "\n" ); document.write( "Hope that helps\r
\n" ); document.write( "\n" ); document.write( "Kev
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