235 total miles minus the 55 miles youve already driven = 180 miles left to drive
divide that 180 by the 60mph and its 3 hours left to drivs
Answer:
48√7
Step-by-step explanation:

3r = 10 + 5s , <span>r = 10
plug in the value of "r" into the equation:
3(10) = 10 +5s
30 = 10 + 5s
subtract 10 from both sides:
20 = 5s
divide both sides by 5:
4 = s
s = 4</span>
N-10 because you want to take 10 away from n