Let x = hours to meet
train one has a 2 hour head start or 210 km head start
210 + 105x = 135x
30x = 210
x = 7 hours to meet
24: 10
12: 5 is equivalent to 24: 10
The answer is <span>The sum is 10 · 11.
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The first 10 positive even numbers are:
2, 4, 6, 8, 10, 12, 14, 16, 18, 20
Their sum is:
2 + 4 + 6 + 8 + 10 + 12 + 14 + 16 + 18 + 20 = 110
Now, let's present it as two factors:
110 = 11 * 10
Answer:
-1
Step-by-step explanation:
parallel lines always have the same slope
