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ArbitrLikvidat [17]

3 years ago

10

A postal clerk sold 50 postage stamps for $16.05. Some were 39-cent stamps and the rest were 24-cent stamps. How many 39-cent st

amps were sold?

1 answer:

svetoff [14.1K]3 years ago

7 0

39x + 24(50 - x) = 1,605
<span>13x + 8(50 - x) = 535 </span>
<span>13x + 400 - 8x = 535 </span>
<span>5x = 135 </span>
<span>x = 27 </span>

<span>Answer: 27 of 39-cent stamps were sold</span>

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