Q1. A man wants to paint his house in 3 colors. If he can choose 3 colors out of 6 colors, how many
1 answer:
The number of color settings he can make is 20
<h3>How to determine the number of color setting?</h3>The given parameters are
Colors, n = 6
Selected color, r = 3
The number of color setting is calculated as:
This gives
Evaluate the expression
Hence, the number of color settings he can make is 20
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Answer: Choice D)
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Work Shown:
Explanation:
First I subtracted y/b from both sides. Then I multiplied both sides by 'a' to fully isolate x. You can optionally distribute the 'a' through to each term inside the parenthesis, but your teacher has chosen not to do this.