Arithmetic progression + expression of a variable from the formula - practice problems
Number of problems found: 117
- Three members
If 2a+2+a =17, what is the value of a? - AP with variables
What is the second member in the arithmetic sequence with 7 terms, whose first and last terms are x+2y and 7x-4y - The sum 39
The sum of the first six terms of the arithmetic sequence is 72, and the second term is seven times the fifth term. Find the first term and the AP difference. - Arithmetic sequence
Determine the sum of the first 12 terms of an AP (arithmetic sequence) if a4 is equal to 7 and a8 is equal to minus 1. - Calculate 81860
The two terms of the geometric sequence are a2=12 and a5=three halves. a) calculate the tenth term of the sequence. b) calculate the sum of the first 8 terms of the sequence. v) how many first terms of the sequence need to be added so that the sum is equa - Difference 81849
Determine four numbers so that the first three form the successive three terms of an arithmetic sequence with difference d=-3 and the last three form the next terms of a geometric sequence with quotient q=one half. - Difference 81835
Determine the difference d in AP if a1=3 and a1+a2=12 - Arithmetic 81798
Two arithmetic sequences have the same first term. The nth term of the first sequence is 15, and of the second sequence, 21. The sum of the first n terms of the first sequence is 63, and of the second sequence, 84. Write the sums of the first n terms of b - Arithmetic 80808
The lengths of the sides of a right triangle form the first 3 terms of the arithmetic sequence. The content is 6cm². - Ninety-one 80354
Ninety-one books are arranged on seven shelves so that there are 4 more books on each subsequent shelf than on the previous one. How many books are on the 7th shelf? - Three members AP
There are arithmetic sequence x + 3, 2x + 3, 5x - 3. If the common difference is 3, find x. - GEOMETRIC MEANS alternating
Find the indicated number of geometric means between the pair of numbers. -32 and 4 [insert 2 means] Sequence:-32, _, _, 4 - FINDING GEOMETRIC MEANS
Find the indicated number of geometric means between the pair of numbers. 16 and 81 [insert 3 members: 16, _, _, _, 81] - The sum 23
The sum of the first 10 terms of an arithmetic sequence is 530. What is the first term if the last term is 80? What is the common difference? - The third 2
The third term of an arithmetic sequence is -12, and the seventh term is 8. What is the sum of the first 10 terms? - AP - general term
Find the sum of the first 12 terms of the arithmetic sequence whose general term is an=3n+5. - What are 3
What are the five arithmetic means between 2 and 44? - Common difference 2
What is the common difference of the arithmetic sequence with 20 terms, whose first term is 5a+b and the last term is 43a+20 b? - Use AP sum formula
If x+3x+5x+7x+...+87x=5808, what is the value of x? - The product 9
The product of the third and second terms of the arithmetic progression is 3000. If the common difference is 10, find the first term.
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