Question

1. Jin bought 3 small candles and 1 medium candle for $3.85. Trish bought 4 small candles and 5 medium candles for $10.45. Write a system of equations that you could use to find the cost of each size of candle. Use s for the cost of a small candle and m for the cost of a medium candle.

Answer 1

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Jin: 3 small candles and 1 medium candle
3s + 1m = 3.85 <-- equation 1

Trish: 4 small candles and 5 medium candles
4s + 5m = 10.45 <-- equation 2

Solving the system of equations,

s = $0.8/small candle
m = $1.45/medium candle