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miskamm [114]
4 years ago
7

Write an expression to describe a rule for the sequence. Then find the 100th term in the sequence. 5, 13, 21, 29, 37, 45, … (1 p

oint)
• 8n; 800
• 8n – 3; 797
• 3n – 8; 292
• 5 + 8n; 805
Mathematics
1 answer:
swat324 years ago
6 0
The sequence is going up by 8 so it must be 8n followed by something. 5 is 3 less than 8 so the full expression will be 8n-3.
Therefore the answer is 8n-3; 797
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Ray Of Light [21]

Add \frac{x}{2} to both sides:

\dfrac{2x}{5}+\frac{x}{2} = 9

Add the fractions in the left hand side:

\dfrac{2x}{5}+\frac{x}{2} = \dfrac{4x}{10}+\frac{5x}{10}=\dfrac{9x}{10}

So, the equation becomes

\dfrac{9x}{10}= 9

Multiply both sides by 10:

9x = 90

Divide both sides by 9:

x = 10

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4 years ago
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aleksandr82 [10.1K]
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3 years ago
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Step-by-step explanation:

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