 admin # Two rafts are traveling In opposite directions on a straight river. The raft going with the current is traveling at a speed of 12 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

2 months ago

## Solution 1 Guest #666
2 months ago
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
D. x/12 + y/7 = 4

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Assume first month's price is x

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Solution 1

Hence, the  correct options are:

A. 2x-5 = 0

and  E. x-4 = 0

### Step-by-step explanation:

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Solution 1
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