document.write( "Question 1173683: Sarah spent 2 hours more travelling by train than she did by bus. The train averaged 70 km/h and
\n" ); document.write( "the bus 50 km/h. The total distance traveled was 740 km. How far did she travel by bus? \n" ); document.write( "

Algebra.Com's Answer #798973 by MathTherapy(10555) $\"\"$ $\"About$

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\n" ); document.write( "Sarah spent 2 hours more travelling by train than she did by bus. The train averaged 70 km/h and the bus 50 km/h. The total distance traveled was 740 km. How far did she travel by bus?
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Let distance travelled by bus, be D
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document.write( "Then distance travelled by train = 740 - D
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document.write( "We then get the following TIME equation: 
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document.write( "7D + 2(350) = 5(740 - D) ------ Multiplying by LCD, 350
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document.write( "7D + 700 = 3,700 - 5D
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document.write( "7D + 5D = 3,700 - 700
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document.write( "12D = 3,000
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document.write( "Distance travelled by bus, or  \n" );
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