Elizabeth wants to buy the steak knives from a bridal registry as a wedding gift. The couple registered for 2 steak knife sets and each set contains 4 steak knives. If Elizabeth buys both sets and they cost $80.00 per set, how much does each single steak knife cost?
Think hard. Detailed solution:
20
Each steak knife set has 4 steak knives and Elizabeth bought 2 sets so there are 4 * 2 = 8 steak knives in total.

Each steak knife set costs $80.

00 and she bought 2 sets so she spent $80 * 2 = $160.

00.

Both sets cost $160.

00 and there are 8 knives in total so each knife costs 160 / 8 = $20.

00 each.

.

The answer is 20