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07-01-2020
Mathematics

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A bag contains blue marbles and red marbles, 81 in total. The number of blue marbles is 3 more than 5 times the number of red marbles. How many blue marbles are there?

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sadafhz95 sadafhz95

08-01-2020

Answer:

X : red marble

Y: blue marble

X+Y= 81 (•)

Y= 5X+3 (••)

>>> 6X+3= 81 >>>> x=13 and y = 68

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