document.write( "Question 911882: I have a question in my PSAT study book: \"If m is 30% of n, and n is 80% of p, then m is what percent of p?\" The answer choices are: 11%, 20%, 50% and 55%. I tried setting up fractions but I get lost and I don't know what to do after that. If anyone could help me find a way to solve this problem, it would be greatly appreciated. Thank you. \n" ); document.write( "

Algebra.Com's Answer #553443 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
(1) $\"+m+=+.3n+\"$
\n" ); document.write( "(2) $\"+n+=+.8p+\"$
\n" ); document.write( "---------------
\n" ); document.write( "The question is:
\n" ); document.write( "(3) $\"+m+=+%28+x%2F100+%29%2Ap+\"$
\n" ); document.write( "Solve for $\"+x+\"$
\n" ); document.write( "---------------
\n" ); document.write( "Substitute (2) into (1)
\n" ); document.write( "(1) $\"+m+=+.3%2A%28+.8p+%29+\"$
\n" ); document.write( "(1) $\"+m+=+.24p+\"$
\n" ); document.write( "--------------------
\n" ); document.write( "Substitute this result into (3)
\n" ); document.write( "(3) $\"+.24p+=+%28+x%2F100+%29%2Ap+\"$
\n" ); document.write( "Divide both sides by $\"+p+\"$
\n" ); document.write( "(3) $\"+.24+=+x%2F100+\"$
\n" ); document.write( "Multiply both sides by $\"+100+\"$
\n" ); document.write( "(3) $\"+x+=+24+\"$
\n" ); document.write( "m is 24% of p
\n" ); document.write( "-------------
\n" ); document.write( "check:
\n" ); document.write( "(1) $\"+m+=+.3n+\"$
\n" ); document.write( "(1) $\"+.24p+=+.3n+\"$
\n" ); document.write( "(1) $\"+n+=+.8p+\"$
\n" ); document.write( "This checks out
\n" ); document.write( "I don't see how the answers they
\n" ); document.write( "gave could be correct\r
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