Mark M. answered  07/24/19
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            Mathematics Teacher - NCLB Highly Qualified
73 = 7 + (n - 1)3
66 = 3n - 3
69 = 3n
23 = n
S23 = (23/2)[2(7) + 22(3)]
Can you calculate and answer?
Shelby C.
asked  07/24/19Given the Arithmetic series
7 + 10 + 13 + 16 + . . . + 73
What is the value of sum?
Mark M. answered  07/24/19
Mathematics Teacher - NCLB Highly Qualified
73 = 7 + (n - 1)3
66 = 3n - 3
69 = 3n
23 = n
S23 = (23/2)[2(7) + 22(3)]
Can you calculate and answer?
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