Plz help! (I will give brainliest) It took a boat 4 hours to travel downstream 120 miles. Upstream, the same trip took 6 hours. Find the rate of the current and the speed of the boat in still water.

Step-by-step explanation:

Travel downstream, speed is:

Travel upstream, speed is:

Add up the equations:

Find y:

Speed of the boat is 25 mph

Speed of the current is 5 mph

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b

1. 3. can also be expressed as (22/7)

2. -4.5

3. 3.6

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