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OpenStudy (anonymous):
Maria solved the equation -5n = -9. Her answer was n = 1. She is fairly confident about her answer, but wants to do a quick check of her solution using estimation. Which of the following shows a good check of her answer? -6(2) = -12 -5(-2) = -10 -5(2) = -9 -5(2) = -10
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OpenStudy (anonymous):
none of the above
myininaya (myininaya):
she got n=1 not n=2 or n=-2 also the first one there is not -6 its -5
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