document.write( "Question 835538: after 3 hours a car has covered a distance of 90km. How fast (speed) was the car traveliing?\r
\n" ); document.write( "\n" ); document.write( "A girl swims 50 meters in 25 seconds. what is her speed?\r
\n" ); document.write( "\n" ); document.write( "What is the speed of a car that travels 420km in 6 hours?\r
\n" ); document.write( "\n" ); document.write( "How fast do you walk if you take 2.5 hours to cover 12.5km?
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\n" ); document.write( "Thank you...need help!
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Algebra.Com's Answer #503601 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
These all use the formula
\n" ); document.write( "\"+d+=+r%2At+\", or
\n" ); document.write( "( distance ) = ( rate )*( time )
\n" ); document.write( "--------------------------
\n" ); document.write( "There are 2 other ways to express this formula:
\n" ); document.write( "\"+r+=+d%2Ft+\"
\n" ); document.write( "( rate ) = ( distance ) / ( time )
\n" ); document.write( "---------------------------
\n" ); document.write( "\"+t+=+d%2Fr+\"
\n" ); document.write( "( time ) = ( distance ) / ( rate )
\n" ); document.write( "================================
\n" ); document.write( "After 3 hours a car has covered a distance of 90km.
\n" ); document.write( "How fast (speed) was the car traveling?
\n" ); document.write( "For this, you need \"+r+=+d%2Ft+\"
\n" ); document.write( "\"+r+=+90%2F3+\" km/hr
\n" ); document.write( "\"+r+=+30+\" km/hr
\n" ); document.write( "------------------------
\n" ); document.write( "A girl swims 50 meters in 25 seconds. what is her speed?
\n" ); document.write( "Again, you need to use: \"+r+=+d%2Ft+\"
\n" ); document.write( "\"+r+=+50%2F25+\" m/sec
\n" ); document.write( "\"+r+=+2+\" m/sec
\n" ); document.write( "------------------------
\n" ); document.write( "What is the speed of a car that travels 420km in 6 hours?
\n" ); document.write( "\"+r+=+420%2F6+\" km/hr
\n" ); document.write( "\"+r+=+70+\" km/hr
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\n" ); document.write( "How fast do you walk if you take 2.5 hours to cover 12.5km?
\n" ); document.write( "\"+r+=+12.5%2F2.5+\" km/hr
\n" ); document.write( "\"+r+=+5+\" km/hr\r
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