A gumball machine has 200 red gum balls. if the red gumballs are 50% of the total number of gum balls, how many gumballs are in the gum ball machine

Respuesta :

400 are in it 200x2 = 400

400 gumball are in the machine. It's 400 gumballs because 50% is half and 200 is half of 400.
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