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4. Twenty-five percent of Marlo's marble collections are red. If he has 84 red marbles, how
many marbles does he have in all?​


Sagot :

Answer:

336 marbles

Step-by-step explanation:

Let 'x' represent total number of marbles.

25%x = 84 (given)

0.25x = 84

x = 84/0.25

x = 336

Therefore, he has a total of 336 marbles.