document.write( "Question 1070721: if the speed of a car is increased from 90km/h to 120km/h, the time is reduced by one hour to reach the destination. Calculate the distance between the two towns. \n" ); document.write( "
Algebra.Com's Answer #685729 by addingup(3677)\"\" \"About 
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90x = 120(x-1)
\n" ); document.write( "90x = 120x-120
\n" ); document.write( "-30x = -120
\n" ); document.write( "x = 4 hours travel time
\n" ); document.write( "90*4 = 360km is the distance between the towns
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\n" ); document.write( "Check:
\n" ); document.write( "If the speed is increased to 120km/h the time is reduced by 1 hour:
\n" ); document.write( "120*(4-1) = 360 Correct, same distance.
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