document.write( "Question 644568: Can you show me the steps to solving this and how to set up an equation to solve it?
\n" ); document.write( "Sarah and John are driving in opposite direction on a straight road. John is driving fifteen miles per hour faster than Sarah. After three hours they are 375 miles apart. How fast were Sarah and John traveling? \n" ); document.write( "
Algebra.Com's Answer #405141 by stanbon(75887)\"\" \"About 
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Sarah and John are driving in opposite direction on a straight road. John is driving fifteen miles per hour faster than Sarah. After three hours they are 375 miles apart. How fast were Sarah and John traveling?
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\n" ); document.write( "You want to solve for \"rate\".
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\n" ); document.write( "Sarah DATA:
\n" ); document.write( "rate = x mph ; time = 3 hours ; distance = 3x miles
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\n" ); document.write( "John DATA:
\n" ); document.write( "rate = x+15 mph ; time = 3 hours ; distance = 3(x+15) miles
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\n" ); document.write( "Equation:
\n" ); document.write( "distance + distance = 375 miles
\n" ); document.write( "3x + 3(x+15) = 375
\n" ); document.write( "3x + 3x + 45 = 375
\n" ); document.write( "6x = 330
\n" ); document.write( "x = 55 mph (Sarah's rate)
\n" ); document.write( "x+15 = 70 mph (John's rate)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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