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Answers by Pjama

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Solve each system using substitution: 4x+y=2 3y+2x=-1
answered Mar 9, 2018
0 votes
123k views
Rodrigo is looking at the system below.   2x + 3y = 9 x - 8y = 11 To solve, he first multiplied the second equation by two and then subtracted the equations. Is Rodrigo correct? Justify your answer. If
answered Feb 18, 2018
1 vote
201k views
Earth’s first life forms were __________. aerobic cyanobacteria photosynthetic chemoautotrophs
answered Jan 9, 2018
3 votes
108k views
Which place value would you look at to compare 225,and 225,988?
answered Oct 9, 2017
3 votes
84.2k views
Which is a characteristic property of acids? A-they, turn blue litmus paper red . B-they, turn red litmus paper blue. C-they tastes bitter D-they don't react with metals
answered Sep 11, 2017
3 votes
23.9k views
Which of the following best describes why "natural" sugars, such as honey, are no better for the body than corn syrup or white sugar? A. Natural sugars, corn syrup, and white sugar all cost the same. B.
answered May 17, 2017
3 votes
10.1k views
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