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jonny [76]
3 years ago
8

A jar contains 5 red marbles, 10 blue marbles, 1 white marble, 6 black marbles, and 3 yellow marbles. Determine the probability

of getting a white marble replacing it and getting a red marble
Mathematics
1 answer:
Oliga [24]3 years ago
5 0

Answer:

so if we make a pie chart

there's 25 marbles

it'll be 1/25 or 4% chance

a red marble is 5/ 25 or a 20% chance

say if you replace the white on the chances of you getting red will be 24% or 6/25 chance of getting red

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Answer:

a=12

Step-by-step explanation:

a/40=3/10

10 x 4=40, so

3 x 4=12

a=12

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A bag contains yellow marbles and blue marbles, 23 in total. The number of yellow marbles is 7 less than 2 times the number of b
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Answer:

b=10, a=13

Step-by-step explanation:

let s number of yellow = a

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we have

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2b - a = 7

->a+b +2b -a = 23+7

-> 3b = 30

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Step-by-step explanation:

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3 years ago
Your annual clothing bill went up from $677.15 last year to $783.17 this year. What is your annual percent of increase from last
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Step-by-step explanation:

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3 years ago
4x - 7 = -3x<br><br> What is the answer?
soldi70 [24.7K]

Answer:

x = 1

Step-by-step explanation:

1. Add 3x to both sides of the problem

  • 4x + 3x - 7 = -3x + 3x
  • -3x + 3x cancels out and leaves us with zero
  • 7x - 7 = 0

2. Add 7 to both sides

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3. Divide both sides by 7

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To make sure our answer is correct we can plug in 1 to x in the problem

  • 4(1) - 7 = -3(1)
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6 0
3 years ago
Read 2 more answers
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