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lapo4ka [179]
4 years ago
10

2 1/2 yards the cost was 15$ cost per yard

Mathematics
2 answers:
grigory [225]4 years ago
6 0
15 + 15 + 7.50 equals $37.50
umka21 [38]4 years ago
5 0
37.5 you times 15 by 2 because there are two yards then divide 15 by 2 then add 30 and 7.5 together 
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Write the following series in sigma notation.<br> 7 + 16 + 25 +34 +43 +52 + 61
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The series 7 + 16 + 25 +34 +43 +52 + 61 is an illusration of arithmetic series

The sigma notation of the series is: \sum\limits^7_{n=1} {9n - 2}

<h3>How to write the series in sigma notation?</h3>

The series is given as:

7 + 16 + 25 +34 +43 +52 + 61

The above series is an arithmetic series, with the following parameters

  • First term, a = 7
  • Common difference, d = 9
  • Number of terms, n = 7

Start by calculating the nth term using:

a(n) = a + (n - 1) * d

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