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Answer please!!!!!!!!!

Answer please!!!!!!!!!-example-1

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Answer:

Third term is 67.

Explanation:

Let the first term of the sequence be
x
.

Given:

The second term is 5 more than the first term.

Second term =
x+5

Third term = First term + Second term =
x+x+5=2x+5

Fourth term = Second term + Third term =
x+5+2x+5=3x+10

Sum of first 4 terms is 237. Therefore,


x+(x+5)+(2x+5)+(3x+10)=237\\(x+x+2x+3x) + (5+5+10)=237.........(\textrm{Commutative property of addition})\\7x+20=237\\7x=237-20\\7x=217\\x=(217)/(7)=31

Now, the third term of the sequence is given as:


\textrm{Third term}=2x+5=2(31)+5=62+5=67

User Martin Reiner
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