# arithmetic

The initial term of an arithmetic sequence is 5. The eleventh term is 125. what is the common difference of the arithmetic sequence?

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1. a = 5
a + 10d = 125

5 + 10d = 125
10d = 120
d = 12

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2. 12

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3. 5 + (12 x 10)
5+120
125

Multiply by 12, ten times, then add 5 to get your 11th term.

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4. I don’t understand

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6. Find the 75th term of the arithmetic sequence -17, -13, -9, ...

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