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Gre4nikov [31]
3 years ago
8

Find the expected value of the prize

Mathematics
1 answer:
slava [35]3 years ago
7 0
Whats the question ??
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Find the missing number. 1, 2, 6, 24, 120,?
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Solve the equation. Check the solution.<br> 9-17x-5-4x=7
Shalnov [3]

Answer:

x = -1/7

Step-by-step explanation:

Solve for x

9-17x-5-4x=7

Combine like terms

-21x +4 = 7

Subtract 4 from each side

-21x-4+4 = 7-4

-21x = 3

Divide each side by -21

-21x/-21 = 3/-21

x = -1/7

Check

9 - 17(-1/7) -5 -4(-1/7) =7

9 + 17/7 -5 + 4/7 =7

4 +21/7 = 7

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