Mathematics, 01.07.2019 08:30 johnsonkhalee

David is watching maria and alma race electric trains around track. maria train can go around the track in 10 seconds. almas trains can go around the track in 12 seconds. davids wonders, if the trains start qt the same time, how many seconds will it take for both trains to cross the finish line together the first time? complete the explanation for how david can answer his question. use qords and phrases from the box to fill in the blanks

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David is watching maria and alma race electric trains around track. maria train can go around the tr...