Asked Jan 23, 2020

Flying against the jet stream, a jet travels 1880 mi in 4 hours. Flying with the jet stream, the same jet travels 5820 mi in 6 hours. What is the rate of the jet in still air and what is the rate of the jet stream?


Expert Answer

Step 1

Let the rate of still air be x miles/hr and the rate of the jet stream be y miles/hr.

Algebra homework question answer, step 1, image 1
Step 2

Now, substitute the given rate of jet when flying against and with the jet stream respectively to find equation (1) and equation (2).

Use the formula for the rate of jet = distance travelled in miles / time taken in hours.

Algebra homework question answer, step 2, image 1
Step 3


Then, add equation (1) and equation (2) and simplify to ...

Algebra homework question answer, step 3, image 1

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