Question: Louis is making himself a velvet suit for a formal event. The velvet fabric he chose was $24 per yard. He bought a pattern for $15, and two spools of silver thread for $3 each. If he spent $141 for the pattern, thread, and fabric, how many yards of fabric did he buy? Think carefully first, then make a decision:
Let V be the number of yards of velvet fabric Louis bought. The silver thread cost 2 * 3 = $6. He spent 24V + 15 + 6 = $141 on the suit. The fabric cost 24V = 141 - 15 - 6 = $120. Thus, Louis bought V = 120 / 24 = 5 yards of fabric. So the answer is 5.