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Charles has 9 times as many red marbles as blue marbles. If he has 288 more red than blue marbles, how many red marbles does he have?
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19 votes
Charles has 9 times as many red marbles as blue marbles.

If he has 288 more red than blue marbles, how many red marbles does
he have?

User Basavaraj Hampali
by
3.4k points

1 Answer

9 votes

Answer:

  • 314 red marbles

Explanation:

Red = r, blue = b,

  • r = 9b
  • r = b + 288

Substitute:

  • 9b = b + 288
  • 8b = 288
  • b = 288/8
  • b = 26

Red marbles:

  • r = 288 + 26 = 314
User Ae
by
3.8k points
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