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Pepsi [2]
3 years ago
14

What is the value of X

Mathematics
1 answer:
Andrews [41]3 years ago
3 0

Answer:

30

Step-by-step explanation:

60+90=150

180-150=30

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Find the sum of first 20 to terms of an ap in which d is equal to 7 and 20 second term is 149​
GuDViN [60]

Answer:

1370

Step-by-step explanation:

<h3>Given</h3>
  • AP with d= 7 and a₂₂ = 149
<h3>To find</h3>
  • Sum of first 20 terms
<h3>Solution</h3>

<u>First, let's get the value of the first term:</u>

  • aₙ = a + (n-1)d
  • a₂₂ = a + 21d
  • 149 = a + 21*7
  • a = 149 - 147
  • a= 2

<u>Next, let's find the sum of the first 20 terms</u>

  • Sₙ = 1/2n(2a+ (n-1)d)
  • S₂₀ = 1/2*20(2*2 + 19*7) = 10(4 + 133) = 10*137 = 1370

<u>Answer is</u> 1370

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Step-by-step explanation:

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James is reading a book that is 1400 pages he will read the same number of pages each day if he reads the book in 7 days how man
Novay_Z [31]
He will read 200 pages a day.
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The area of the trapezoid is 70 square inches. What is the length of the larger base?
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Step-by-step explanation:

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3 years ago
X − y = 4 y − 8 = -x At which point do the given equations intersect each other?
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Answer:

(6,2)

Step-by-step explanation:

Graph is below

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