Algebra 1
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the sum of the n termsof an ap whose first term is 5 and common difference is 36 is equal to the sum of 2n terms of another AP whose first term is 36 ans common difference is 5. Find n?
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THE SUM OF THE 2ND AND 5TH TERMS OF AN A.P IS 42. IF THE DIFFERENCE BETWEEN THE 6TH AND 3RD TERM IS 12, FIND THE: COMMON DIFFERENCE, 1ST TERM, 20TH TERM.
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For what value of "k" will the following set of planes intersect in a line? x  2y  z = 0 x + 9y  5z = 0 kx  y + z = 0 Work: Elimination to find "z": x  2y  z = 0 x + 9y  5z = 0  11y + 4z = 0 z = 11y/4 Sub
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The sum of the first 20 terms of an arithmetic series is identical to the sum of the first 22 terms. If the common difference is 2, find the first term.
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The sum of the 4th and 6th terms of an AP is 42. The sum of the 3rd and the 9th term of progression is 52, find the first term and the common difference of the sum of the 1st, 10th terms of the progression
asked by Okoro Jennifer on November 25, 2018 
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Sum of4th and the 6th terms of an a,p is 42 . While the sum of the 3rd and 9th terms of the same a.p is 52. Find the (a) first term (b)common difference (c) sum of the first ten terms of the progression. Solution
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The sum of 16th term is 240,the sum of the next four terms is 220.Find the first term and the common difference.
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An arithmetic progression has 3 as its first term. Also, the sum of the first 8 terms is twice the sum of the first 5 terms. Find the common difference.
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