Arithmetic progression + expression of a variable from the formula - practice problems - last page
Number of problems found: 117
- Determine 3876
Determine the second term and the quotient GP if a3 = 48.6 a1 + a2 = 6 - Difference 3832
Determine the difference AP if a1 = -7.5 and a1 + a2 = 4.8. - Previous 3824
There are 48 bottles in the third row, seven fewer in each row than in the previous row. Find the number of bottles in the first row. - Difference 3802
Determine the second term and the difference AP if a3 = 5 and a1 + a3 = 16.
- Q of GP
Calculate the quotient of geometric progression if a1=5 and a1+a2=12. - Quotient
Determine the quotient and the second member of the geometric progression where a3=10, a1+a2=-1.6, and a1-a2=2.4. - Determine AP
Determine the difference of the arithmetic progression if a3 = 7, and a4 + a5 = 71 - Fifth member
Determine the fifth member of the arithmetic progression if the sum of the second and fifth members equals 73 and the difference d = 7. - Chocholate pyramid
How many chocolates are on the third shelf when on the 8th shelf are 41 chocolates on any other shelf? Are seven chocolates more than the previous shelf?
- Chairs
Determine the number of seats in the seventh and ninth rows if the 3rd row has 14 seats and every next row has five more than the previous row. - Subsequent 3427
Find how many strings there are in the first row if there are 44 strings in the eighth row, and in each subsequent row, there are five more strings than in the previous row. - 1600 3263
a1 = 1 s40 = 1600 a40 =? - Subsequent 3056
There are 48 pupils in the third row and 17 more in each subsequent row than in the previous one. Find how many pupils there are in the first and tenth rows. - Kilogram 3024
One kilogram of raisins costs a crown and one kilogram of nuts a crown. They added 5 kg raisins and 3 kg nuts to the mixture. How much does 1 kg of mixture cost?
- Difference AP
Calculate the difference of arithmetic progression if the sum of its first 19 members Sn = 8075 and the first member is a1 = 20 - Sequence
Find the common ratio of the sequence -1, 3, -9, 27, -81. Please ratio writes as a decimal number rounded to a tenth. - Sequence
Between numbers, 11 and 115, insert n members of the arithmetic sequence whose sum is 2835.
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