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Sonbull [250]
3 years ago
11

Charles has 9 times as many red marbles as blue marbles.

Mathematics
1 answer:
djyliett [7]3 years ago
6 0

Answer:

  • 314 red marbles

Step-by-step 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
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Hey there!

-1.3n = 7.8

First, you have to DIVIDE both sides by -1.3

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Cancel out: -1.3 / -1.3 because it gives you the value of 1

Keep: 7.8 / -1.3 because it gives us the value of n

7.8 ÷ -1.3 = -6

Thus, n = -6 ✅

Good luck on your assignment and enjoy your day!

~LoveYourselfFirst:)

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