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Black_prince [1.1K]
3 years ago
8

A bag contains white marbles and red marbles,69 in total. The number of white marbles is 1 more than 3 times the number of red m

arbles. How many white marbles are there?
Mathematics
1 answer:
Ksenya-84 [330]3 years ago
6 0

White Marbles (w)= 1 + 3r

Red Marbles (r) = r

1 + 3r + r = 69

1 + 4r = 69

- 1

4r = 68

r = 17

There are 17 red marbles.

White Marbles = 1 + 3(17)

3 * 17 = 51

51 + 1 = 52

There are 52 white marbles.

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