Two airports

Two airports are 2690 km away. From the first airport, the airplane flies at a speed of 600 km/h, from a second airplane at a speed of 780 km/h. When will they meet if they flew at 10:00? How far from the first airport?

Result

t = 11:57 hh:mm Wrong answer
s1 =  1169.565 km

Solution:


2690 = 600(t-10.00) + 780(t-10.00)
s1 = 600•(t-10.00)

2690 = 600•(t-10.00) + 780•(t-10.00)
s1 = 600•(t-10.00)

1380t = 16490
s1-600t = -6000

s1 = 2690023 ≈ 1169.565217
t = 1649138 ≈ 11.949275

Calculated by our linear equations calculator.
s1=1169.5652=2690023=1169.565 kms_{1}=1169.5652=\dfrac{ 26900 }{ 23 }=1169.565 \ \text{km}



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