Mathematics, 12.12.2019 01:31 jerseygirl1783

volunteers a, b, and c volunteered offered to stuff 838 envelopes with newsletters for a certain reelection campaign. volunteer a could assemble 170 per hour, volunteer b, 117 per hour, and volunteer c, 142 per hour. they worked a total of 6 hours. the sum of the number of hours that volunteers b and c spent was twice what volunteer a spent. how long did each of them work?

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