document.write( "Question 1007322: Ms. snow decide to get a test worth 90 points and contains 25 questions. multiple-choice questions are worth 3 points and word problems are worth 4 points. How many of each type of question are there? \n" ); document.write( "
Algebra.Com's Answer #623261 by macston(5194)\"\" \"About 
You can put this solution on YOUR website!
.
\n" ); document.write( "M=number of multiple choice; W=word problems
\n" ); document.write( ".
\n" ); document.write( "M+W=25
\n" ); document.write( "M=25-W
\n" ); document.write( ".
\n" ); document.write( "3M+4W=90
\n" ); document.write( "3(25-W)+4W=90
\n" ); document.write( "75-3W+4W=90
\n" ); document.write( "W=15
\n" ); document.write( "ANSWER 1: There were 15 word problems.
\n" ); document.write( ".
\n" ); document.write( "M=25-W
\n" ); document.write( "M=25-15
\n" ); document.write( "M=10
\n" ); document.write( "ANSWER 2: There were 10 multiple choice problems.
\n" ); document.write( ".
\n" ); document.write( "CHECK:
\n" ); document.write( "3M+4W=90
\n" ); document.write( "3(10)+4(15)=90
\n" ); document.write( "30+60=90
\n" ); document.write( "90=90
\n" ); document.write( "
\n" ); document.write( "
\n" );