Find d if a1= 3/2 and a18= 23/4.
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Find d if a1= 3/2 and a18= 23/4.
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Answer:
d = 1/4
Step-by-step explanation:
an = a1 + (n-1) d
23/4 = 3/2 + (18-1) d
23/4 = 3/2 + 17d
23/4 - 3/2 = 17d
17/4 = 17d
Divide by 17
1/4 = d
Answer With Solution:
An=a1+(n-1)d
23/4=3/2+(18-1)d
23/4=3/2+17d
17d=23/4-3/2
17d=17/4
d= ¼ :)))