human
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?
assistant
Define a variable ** Let V be the number of yards of velvet fabric Louis bought.
How much did the silver thread cost? ** The silver thread cost 2 * 3 = $<<2*3=6>>6.
How much did Louis spend? ** He spent 24V + 15 + 6 = $141 on the suit.
How much did the fabric cost? ** The fabric cost 24V = 141 - 15 - 6 = $120.
How many yards of fabric did Louis buy? ** Thus, Louis bought V = 120 / 24 = <<120/24=5>>5 yards of fabric.
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