Answer:
A (5,-4)
Step-by-step explanation:
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13/12 or 1 1/12. The first one is an improper number, the second is proper. hope this helps :)
Answer:
sum of the first 27 terms = -1431
Step-by-step explanation:
<h3>arithmetic series sum of the first n terms formula:</h3>
n = 27 terms
first term, a = 25
common difference, d = 19 - 25 = -6
substitute the values into the formula
Age of Sita is 14.25 years and her father is 42.75 years
Step-by-step explanation:
- Step 1: From given details, let present age of Sita be x and that of her father be 3x.
- Step 2: Form equations based on their ages in 6 years. (Given sum is 69)
⇒ (x + 6) + (3x + 6) = 69
⇒ 4x + 12 = 69
⇒ 4x = 57
⇒ x = 14.25
- Step 3: Calculate age of Sita's father
⇒ 3x = 42.75