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2 answers:
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Answer:
The rate of current is 2.5 mph.
Step-by-step explanation:
The speed in the water when current is absent is 9 mph.
If the speed of the current is v mph then the upstream speed is (9 - v) mph and the downstream speed is (9 + v) mph.
Now, it takes 5 hours longer to travel 74 miles upstream than down stream, then we can write the equation as
⇒
⇒ 148v = 405 - 5v²
⇒ 5v² + 148v - 405 = 0
Applying Sridhar Acharya's formula we can write
(Neglecting the negative root)
⇒ mph (Rounded to the nearest 10th) (Answer)
Answer:
Price for one pound = 50 cents
Step-by-step explanation:
Apples are on sale at the market 4 pounds for $2.00.
That is price for one pound = 0.5 $
We have 1 dollar = 100 cents
Price for one pound = 0.5 $ = 0.5 x 100 = 50 cents
Price for one pound = 50 cents