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a box of 10 markers weighs 105 grams. if the empty box weights 15 grams, how much does each marker weigh?

Respuesta :

first, ,how much do all the markers weight? the box with the markers weights 105, so without the box all the markers weigh 105-15=90 grams.


so 90 grams is the weight of 10 markers together, and each of them will weigh one tenth of this: 90/10=9

so each marker weights 9 grams.

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