A train traveled at the same speed for 3 hours. It went 77.6 miles in all. To the nearest thousandth of a mile per hour, how fast was the train going?

Solution

Solution

speed : 25.86666 \dots

Solution steps

Translate the problem into an equation:

77.6 = x \cdot 3

Solve for

x, 77.6 = x \cdot 3 : x = 25.86666 \dots

speed : 25.86666 \dots

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