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OpenStudy (anonymous):
the first stage of a rocket burns 28 seconds longer than the second stage. If the total burning time for both stages is 152 s, how long does each stage burn.
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OpenStudy (campbell_st):
let the 2nd stage = x 1st stage = x + 28 so x + 28 + x = 152 solve for x hope it helps
OpenStudy (anonymous):
it did thank you very much
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