The answer would be 63 bc 46+71= 117 then a triangle usaually equals 180 so 180 -117=63!!
The answer is D, 7n + 14.
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The average speed, in km/minute, of the train is 2.79 km/minute
<h3>Calculating average speed </h3>
From the question, we are to calculate the average speed in km/minute
From the given information,
Distance travelled = 503 km
Time taken = 3 hours = 3 × 60 minutes = 180 minutes
Using the average speed formula,
Average speed = Distance / Time
∴ Average speed of the train = 503 / 180
Average speed of the train = 2.79 km/minute
Hence, the average speed, in km/minute, of the train is 2.79 km/minute
Learn more on Calculating average speed here: brainly.com/question/12025128
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Answer:
23 + 10x = x + 5
you write out that first 23 plus 10 times x and it gives you 5 more than x
