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16 May, 08:06

write an expression that can be used to find the nth term of the arithmetic sequence 15,30,45,60 ... then write the nextthree terms.

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  1. 16 May, 08:10
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    Step-by-step explanation:

    15, 30, 45, 60 ... (15 + (n - 1) * 15) ...

    n = 5

    15 + (5 - 1) * 15

    15 + 4 * 15

    15 + 60

    75

    n = 6

    15 + (6 - 1) * 15

    15 + 5*15

    15 + 75

    90

    n = 7

    15 + (7 - 1) * 15

    15 + 6*15

    15 + 90

    105
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