Question 221632
"write and solve an equation to find the nth term of each arithmetic sequence"
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Every arithmetic sequence has this form: a(n)= a(1)+(n-1)d
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3,7,11,15, . . . n=8
a(8) = 3 + 7*4 = 31
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10,5,0,-5, . . . n=21
a(21) = 10 +(20)*-5 = 10-100 = -90
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34,49,64,79, . . . n=200
a(200) = 34 + (199)*15 = 3019
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Cheers,
Stan H.