The maximum speed of the Tupeloev Tu - 144 airliner is 694 m/s what is this speed in kilometers per hour?
On a certain day, the exchange rate was 60 U.S. dollars for 50 euro. How many U.S. dollars were 70 euro worth that day?
An envirornmental scientist wants to estimate the number of carp in a pond. He captures 100 carp, tags all of them, and releases them. A week later, he captures 85 carp and records how many have tags. His results were 20 tagged, and 65 not tagged. Write and solve a proportion to estimate thenumber of carp in the pond.
2006-11-01 11:30:06 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
1) to change meters per second to Km per hour you must multiply 694 m/s X 1000 KM/m X 60 s/min X 60 min/hour.
This gives 694*3600000 Km/hour. This is some airplane that can fly that fast!
2) 60 $ 50 Euro
(70/60)60 $ = (70/60 ) 50 Euros
70 $ = 350/6 = 58.33 Euros
3) Too many unknowns here. How many carp lost there tags? How many carp died? How many carp were born during the week? Estimates like this suck.
2006-11-01 12:08:05 · answer #1 · answered by ironduke8159 7 · 0⤊ 0⤋
thats yo f in homework u do it
2006-11-01 11:37:53 · answer #2 · answered by happy me 2 · 1⤊ 0⤋