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Mathematics, 21.06.2019 17:00
Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.
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Mathematics, 21.06.2019 19:20
Which number line represents the solution set for the inequality - x 24?
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Mathematics, 22.06.2019 00:30
y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?
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