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this is the trouble: 1/3x(-2x3.15)
my nephew say is -2.33 because we need to rounded the -6.3 to -7. The prof he's ok with the -7 but he never give the answer to how to get the -7, for me the answer is -2.09999996 (rounded to -2.1)... Why is not the same result?

thank's a lot

 
 Jun 5, 2021
 #1
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-1

The exact answer is 0.267. I'm sorry but I don't have time to explain.

 
 Jun 5, 2021
edited by Guest  Jun 5, 2021
 #2
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+1

\(\frac{1}{3}\times(-2\times3.15)=\frac{1}{3}\times(-6.3)=-\frac{6.3}{3}=-2.1\)

.
 
 Jun 6, 2021

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