Answer:
The second boat will catch up in 8.5 hours, and they will be 187 km from their port.
Step-by-step explanation:
Since the system of equations are d=18t+34 and d=22t, you first rewrite d=18t+34 as an equation. 18t+34=22 and that equals to 8.5=t. Then you solve the next one d=22t and the answer you got from the other equation, you substitute d=22(8.5) and that equals to 187.
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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
