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Bond [772]
3 years ago
13

Part A: Solve the equation 7x + 3x − 18 = 6(x + 3), and show your work. (5 points)

Mathematics
2 answers:
Levart [38]3 years ago
7 0

Answer:

9

Step-by-step explanation:

7x +3x - 18 =6(x +3)

10x - 18 =6x +18

10x - 6x =18 +18

4x =36

x=36 :4

x=9

const2013 [10]3 years ago
7 0

Answer:

7x \:  + 3x \:  - 18 = 6(x + 3) \\ 10x - 18 = 6x  + 18 \\ 10x - 18 + 18 = 6x + 18 + 18 \\ 10x = 6x + 36 \\ 10x - 6x \:  = 6x - 6x + 36 \\ 4x = 36 \\ we \: divide \: both \: sides \: by \: 4 \\ 4x \div 4 = 36 \div 4 \\ x = 9

hope that will help you

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Find the expected value of the winnings
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The expected value of the winnings from the game is $4

<h3>How to determine the expected value?</h3>

The payout probability distribution is given as:

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Probability 0.5 0.2 0.15 0.1 0.05

The expected value is then calculated as:

E(x) = \sum x * P(x)

This gives

E(x) = 2 * 0.5 + 4 * 0.2 + 6 * 0.15 + 8 * 0.1 + 10 * 0.05

Evaluate the expression

E(x) = 4

Hence, the expected value of the winnings from the game is $4

Read more about expected values at:

brainly.com/question/15858152

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1 year ago
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3 years ago
answer What happens to the probability of landing on blue as more and more sections are added to the spinner?
sveta [45]

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8 0
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Answer:

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Step-by-step explanation:

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4 0
3 years ago
A bottle of water contains 450ml. How many litres of water are there in 8 of these bottles
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Answer:

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6 0
2 years ago
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