The train at an amusement park is a scale model of a full size train. A measure of 0.15 meter on the train at the amusement park represents 1 meter on the full size train. The train at the amusement park is 21 meters long what is the length of the full size train in meters

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step-by-step explanation:

17

step-by-step explanation:

51/3=17

thus 17 is your answer.

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