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AnnyKZ [126]
3 years ago
15

There are 36 bikes in a store (18 pairs). 1 pair(s) are yellow, 3 pairs are red, and the rest are purple. If you took out a purp

le bike and you didn’t put it back, what is the probability that you pull out another purple bike?
Please explain process
Mathematics
1 answer:
LenaWriter [7]3 years ago
8 0

Answer: 27/36

Step-by-step explanation: It says there are 36 bikes (18 pairs), meaning that there are 2 bikes per pair because 18 multiplied by 2 is 36.

1 pair (2 bikes) are yellow.

3 pairs (6 bikes) are red.

For purple, add yellow and red together: 2 + 6 = 8. Subtract the total number of bikes from this: 36 - 8 = 28 purple bikes.

If you take out 1 purple bike, this leaves you with 27. The probability of choosing a purple bike out of the total (36), is 27/36.

Please let me know if this is correct or wrong.

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Step-by-step explanation:

You know that the first equation is:

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According to the Addition property of equality:

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Then, you can add 6 to both sides of the first equation to keep it balanced. Then, you get:

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Therefore, you can observe that the second equation can be obtained by adding 6 to both sides of the first equation, therefore, the equations have the same solution.

If you want to verify this, you can solve for "x" from both equations:

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