Two rafts are traveling In opposite directions on a straight river. The raft going with the current is traveling at a speed of 1
2 mph. The raft going against the current is traveling at a speed of 70 miles per hour. Both rafts travel the river for two hours. Which equation represents the situation? Assume the raft traveling with the current travels X miles in the raft traveling against the current travels y miles. A. 12/x - 7/y = 1/2
B. 12x + 7y = 2
C. x/12 - y/7 = 2
D. x/12 + y/7 = 4
E. 12x + 7y = 4
Time =(distance)/speed Time taken by the raft going with the current to travel x miles is: 12/x hours Time taken by the raft going against the wind is: 7/y Total time taken for both raft is 4 hours thus: 12/x+7/y=4 hence the answer is: <span>D. x/12 + y/7 = 4</span>
Well, when you simplify 3/12 it equals 1/4 so if you multiply that by 3 and multiply 2/3 by 4 to get common denominators, you have 3/12 and 8/12, so yes, 3/12 is less than 2/3. I hope this helps cx