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Researchers estimate that there are about 7,000 to 35,000 U.S. tons of plastic debris in the ocean. There are 2,000 pounds in a U.S. ton. Which of these is correct scientific notation for the number of pounds in 35,000 U.S. tons?

 Nov 15, 2018
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35000 x 2000   =

 

3.5 x 10^4  x  2 x 10^3   =

 

3.5 x 2 x 10^4 x 10^3   =

 

7.0 x  10^7  lbs

 

 

cool cool cool

 Nov 15, 2018

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