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Mathematics, 27.06.2019 19:00 sarakiker
Two customers went to a post office to buy postcards and large envelopes. each postcards costs the same amount, and each large envelope costs the same amount. the first customer paid $12 for 14 postcards and 5 large envelopes. the second customer paid $24.80 for 10 postcards and 15 large envelopes. what was the cost in dollars of each large envelope?
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Two customers went to a post office to buy postcards and large envelopes. each postcards costs the s...
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