document.write( "Question 315151: 2.Salisbury High School decided to take their students on a field trip to a theme park. A total of 150 people went on the trip. Adults pay $45.00 for a ticket and students pay $28.50 for a ticket. How many students and how many adults went to the park if they paid a total of $4770?\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "3.Your piggy bank has a total of 46 coins in it; some are dimes and some are quarters. If you have a total of $7.00, how many quarters and how many dimes do you have? \n" ); document.write( "
Algebra.Com's Answer #225616 by checkley77(12844)\"\" \"About 
You can put this solution on YOUR website!
A+S=150 OR A=150-S
\n" ); document.write( "45A+28.50S=4,770
\n" ); document.write( "45(150-S)+28.50S=4,770
\n" ); document.write( "6,750-45S+28.50S=4,770
\n" ); document.write( "-16.50S=4,770-6,750
\n" ); document.write( "-16.50S=-1,980
\n" ); document.write( "S=-1,980/-16.50
\n" ); document.write( "S=120 STUDENT TICKETS WERE SOLD.
\n" ); document.write( "150-120=30 ADULT TICKETS WERE SOLD.
\n" ); document.write( "PROOF:
\n" ); document.write( "45*30+28.50*120=4,770
\n" ); document.write( "1,350+3,420=4,770
\n" ); document.write( "4,770=4,770
\n" ); document.write( "-------------------------------------
\n" ); document.write( "D+Q=46 OR D=46-Q
\n" ); document.write( ".10D+.25Q=7
\n" ); document.write( ".10(46-Q)+.25Q=7
\n" ); document.write( "4.6-.10Q+.25Q=7
\n" ); document.write( ".15Q=7-4.6
\n" ); document.write( ".15Q=2.4
\n" ); document.write( "Q=2.4/.15
\n" ); document.write( "Q=16 QUARTERS.
\n" ); document.write( "D=46-16=30 DIMES.
\n" ); document.write( "PROOF:
\n" ); document.write( ".10*30+.25*16=7
\n" ); document.write( "3+4=7
\n" ); document.write( "7=7\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "
\n" );