document.write( "Question 1069529: Brent and Lance leave a park on bikes at constant rates in opposite directions. After 2.5 hours they are 85 miles apart. If Lance bikes 2mph faster than Brent, how fast is Lance biking? \n" ); document.write( "

Algebra.Com's Answer #684726 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"L=B%2B2\"$
\n" ); document.write( " $\"B%2At%2BL%2At=D\"$
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( " $\"B%2A2.5%2BL%2A2.5=85\"$
\n" ); document.write( " $\"2.5%28B%2BL%29=85\"$
\n" ); document.write( "Substituting,
\n" ); document.write( " $\"2.5%28B%2BB%2B2%29=85\"$
\n" ); document.write( " $\"2B%2B2=34\"$
\n" ); document.write( " $\"2B=32\"$
\n" ); document.write( " $\"B=16\"$ $\"mph\"$
\n" ); document.write( "So,
\n" ); document.write( " $\"L=16%2B2\"$
\n" ); document.write( " $\"L=18\"$ $\"mph\"$
\n" ); document.write( " \n" ); document.write( "

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