SOLUTION: Find a1 if d = 2.5, a15 = 33.5, and S15 = 240.
A.) 2.5
B.) -1.5
C.) -4
D.) -2.5
I thought it was A, the only positive number.
Link to problem: https://i.imgsafe.org/6de
Algebra.Com
Question 1040934: Find a1 if d = 2.5, a15 = 33.5, and S15 = 240.
A.) 2.5
B.) -1.5
C.) -4
D.) -2.5
I thought it was A, the only positive number.
Link to problem: https://i.imgsafe.org/6de84a897f.png
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Find a1 if d = 2.5, a15 = 33.5, and S15 = 240.
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a(15) = a(1) + 14*2.5 = 33.5
a(1) + 35 = 33.5
a(1) = -1.5
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Cheers,
Stan H.
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A.) 2.5
B.) -1.5
C.) -4
D.) -2.5
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