and the 5th term is 4.
Answer: The 1st term of the progression is 2.
Explanation: The common difference of the progression is ½, which means that each term is increased by ½. Therefore, the 1st term is 2, the 2nd term is 2 + ½ = 2.5, the 3rd term is 2.5 + ½ = 3, the 4th term is 3 + ½ = 3.5, and the 5th term is 3.5 + ½ = 4.
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Find the 1st term of the progression given that it's common difference is ½
2 answers
More standard explanation:
given: term(5) = 4 and d = 1/2
term(5) = a + 4d + 4
a + 4(1/2) = 4
a + 2 = 4
a = 2 , so the first term is 2
given: term(5) = 4 and d = 1/2
term(5) = a + 4d + 4
a + 4(1/2) = 4
a + 2 = 4
a = 2 , so the first term is 2