document.write( "Question 892706: a car travels 30 kph fster than a truck, the car covers 540km in 3 hrs les than the time it takes the truck to travel the same distance how fast does the car travel \n" ); document.write( "
Algebra.Com's Answer #540713 by josgarithmetic(39617)\"\" \"About 
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Assign some variables for RT=D, uniform rates travel, rate time distance.\r
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\n" ); document.write( "\n" ); document.write( "r = rate of truck
\n" ); document.write( "r+30 = rate of car
\n" ); document.write( "d = distance truck travels\r
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\n" ); document.write( "\n" ); document.write( "___________________speed________time________distance_____EQUATIONS
\n" ); document.write( "CAR________________r+30_________t-3_________540__________\"highlight_green%28%28r%2B30%29%28t-3%29=540%29\"
\n" ); document.write( "TRUCK_______________r____________t__________540__________\"highlight_green%28rt=540%29\"\r
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\n" ); document.write( "\n" ); document.write( "The rest of the solving process is arithmetic or algebraic steps.
\n" ); document.write( "Two equations in two unknowns r and t. The system is not linear;
\n" ); document.write( "a couple of substitutions will be needed during the process.
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