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Diano4ka-milaya [45]
3 years ago
10

A 10 miles per hour b 15 miles per hour c 30 miles per hour d 65 miles per hour

Mathematics
1 answer:
erik [133]3 years ago
7 0
<h3>Answer: B) 15 mph</h3>

====================================================

Explanation:

The equation d = 65t means that the rate is r = 65. So Malcolm's family travels at an average rate of 65 mph. Note this is the slope of the line.

The graph has a slope of 50 because each time we go up 50, we move to the right 1. Ie, slope = rise/run = 50/1 = 50. You could use the slope formula to get the same result.

Since the graph has a slope of 50, this means Theo's family is going at an average speed of 50 mph.

Subtract the two speeds to get 65-50 = 15 mph

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