If one inch represents 65 on a map, then how many inches will represent 2,300 miles?
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The sequence of the number of girl attendees at each Barangay is nonzero, given by multiplying the number of attendees in the previous Barangay by 2
The required values are;
a. The completed table is presented as follows;
b. The sequence of the number of girls attendees aₙ = <u>4×2⁽ⁿ⁻¹⁾</u>
c. The sum of beneficiaries of the lecture from the twelve Barangay is <u>16,384 girls</u>
Reason:
Known parameters are;
Number of girls that attended the lecture at Barangay 1 = 4 girls
Number of girls that attended from Barangay 2 = 8 girls
Number that attended from Barangay 3 = 16 girls
a. The required table with the assumption that the number of girls that attended at each Barangay from Barangay 1 to Barangay 7 doubles, is presented as follows;
b. The sequence of the number of girls who attended the lecture from Barangay 1 to Barangay 7 is presented as follows;
The sequence is a geometric progression having the form, aₙ = a·r⁽ⁿ⁻¹⁾
The first term of the sequence, a = 4
The common ratio, r = 2 (each term is twice the previous term)
n = The number of terms
The sequence is therefore;
- <u>aₙ = 4·2⁽ⁿ ⁻ ¹⁾</u>
c. The total number of girls in the geometric progression, (G. P.) is given by the sum of a G. P. as follows
Where;
n = The number of terms = 7 + 5 = 12
Which gives;
The total number of girls who will benefit from the lectures, S₁₂ = <u>16,384 girls</u>
Learn more about geometric progression here: