book Maths Puzzle Numerical Ability

At 10:00 a car leaves a house at a rate of 60mi/h. At the same time another car leaves the same house at a rate of 50mi/h in the opposite direction. At what time will the cars be 3

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book Other Question

solve equation using "t" substitution method:

12r^4-11r^2+2=0 (12r^4 just means 12r to the fourth, same with 11r^2) Jim's weekly pay is two thirds of alica's. together they earn $600 per week. What is each person's weekly pay? (write it step by step)