Mathematics, 05.06.2020 18:02 shadowsnake

Jamal went to the post office to buy stamps and large envelopes. Each stamp costs the same amount, and each large envelope costs the same amount.

The first customer paid $13.25 for 14 stamps and 5 large envelopes.

The second customer paid $23.75 for 10 stamps and 15 large envelopes.

What was the cost in dollars of each large envelope?

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