Paco is trying to explain to his friend that 7 divided by 2 is 7/2 draw a model or number line showing 7 divided by 2 = 7/2
1 answer:
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Answer:
Final answer is c. 15
Step-by-step explanation:
We need to find about what is the first term in the sequence for which d = -2 and a7 = 3
We will use nth term formula of arithmetic sequence.
we have been given a7 that means 7th term is 3
so plug n=7, d=-2 and a_n=3 into above formula
Hence final answer is c. 15