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While bowling, Doug stood 19 meters away from the pins and rolled his bowling ball down the lane. For 2.4seconds, the ball rolled toward the pins at 7.5meterspersecond. In this time, how far did the ball roll?

解答

解答

bal l^{'} s distance : 19

求解步骤

Translate the problem into an equation:

x = 19

求解

x, x = 19 : x = 19

bal l^{'} s distance : 19

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