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From center station, a train departs every 30 minutes on the fast line and a train departs every 50 minutes on the state line. if two trains depart from center station at 8: 00 a.m., one on each of the two lines, what is the next time that two trains, one on each line, will depart at the same time?
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In positive numbers less than 1, the zeros between the decimal point and a non-zero number are blank significant
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Ascientist wants to test ways to reduce pollution in lake . what is the bestway of doing this
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Why do waves with high frequencies have short wavelengths...
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