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:
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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