basic math problem
posted by Anonymous on .
the sum of three numbers is 8. the first number plus the second is 16 less than the third. the second number is 8 more than the third. find the numbers

a freight train leaves detroit traveling east at a speed of 65mph. one hour later, a passanger train leaves traveling wst a 85mph. how long will it take for the trains to have traveled the sam distance?

a + b + c = 8
a + b = c  16
b = c + 8
so
c  16 + c = 8
2 c = 24
c = 12
b = c + 8 = 20
a + 20 + 12 = 8
a + 32 = 8
a = 24