SOLUTION: Tom covers 280 km distance daily at a speed of 80km/hour if speed is reduced by10km/hour. How much time will he take to cover same distance

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: Tom covers 280 km distance daily at a speed of 80km/hour if speed is reduced by10km/hour. How much time will he take to cover same distance      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 1042836: Tom covers 280 km distance daily at a speed of 80km/hour if speed is reduced by10km/hour. How much time will he take to cover same distance
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39625) About Me  (Show Source):
You can put this solution on YOUR website!
RT=D is the travel rates rule relating "speed" R, time T, and distance D.

system%2880%2At=280%2C%2880-10%29%28t%2Bx%29=280%29
two unknown variables, two equations;
You can simply solve for t right away... and then......



Forming a table of data can often help to find the equations to make for the problem description. Here, the description was taken directly to the two listed equations without a data table.

Answer by ikleyn(52855) About Me  (Show Source):
You can put this solution on YOUR website!
.
Tom covers 280 km distance daily at a speed of 80 km/hour.
If speed is reduced by 10 km/hour, how much time will he take to cover same distance
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

280%2F70 = 4 hours.

There is no need to solve any equations.