AIR MATH

Math Question

15 Two customers went to a post office to buy postcards and large envelopes. Each postcard costs the same amount, and each farge envelope costs the same amoumt.
- The first customer paid \( \$ 12 \) for 14 postcards and 5 large envelopes.
- The second customer paid \( \$ 24.80 \) for 10 postcards and 15 targe envelopes.
What was the cost in dollars of each targe envelope?
A \( 51.42 \)
\( 3 \$ 50.35 \)
C \( \$ 1.15 \)
D \( 50.63 \)

Solution

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