# What is 10

What is the 5th term, if the 8th term is 80 and common ratio r =1/2?

### Correct answer:

#### You need to know the following knowledge to solve this word math problem:

## Related math problems and questions:

- If the 3

If the 6th term of a GP is 4 and the 10th is 4/81, find common ratio r. - Geometric progressiob

If the sum of four consective terms of geometric progression is 80 and arithmetic mean of second and fourth term is 30 then find terms? - Arithmetic progression 2

The 3rd term of an Arithmetic progression is ten more than the first term, while the fifth term is 15 more than the second term. Find the sum of the 8th and 15th terms of the Arithmetic progression if the 7th term is seven times the first term. - Gp - 80

One of the first four members of a geometric progression is 80. Find its if we know that the fourth member is nine times greater than the second. - Common difference

The 4th term of an arithmetic progression is 6. If the sum of the 8th and 9th term is -72, find the common difference. - HP - harmonic progression 2

Compute the 16th term of the HP if the 6th and 11th term of the harmonic progression are 10 and 18 respectively. - Geometric progression

In geometric progression, a1 = 7, q = 5. Find the condition for n to sum first n members is: sn≤217. - Three members GP

The sum of three numbers in GP (geometric progression) is 21 and the sum of their squares is 189. Find the numbers. - Quotient

Determine the quotient and the second member of the geometric progression where a3=10, a1+a2=-1,6 a1-a2=2,4. - Terms of GP

What is the 6th term of the GP 9, 81, 729,. .. ? - Five element

The geometric sequence is given by quotient q = 1/2 and the sum of the first six members S_{6}= 63. Find the fifth element a_{5}. - Missing term 2

What is the missing term for the Geometric Progression (GP) 3, 15, 75,__, 1875? - Find the 2

Find the term independent of x in the expansion of (4x^{3}+1/2x)^{8} - What are 2

What are the two more terms of the GP a, ax, ax^{2}, ax^{3}, __, __? - Q of GP

Calculate quotient of geometric progression if a1=5 a a1+a2=12. - Find the 19

Find the 1st term of the GP ___, -6, 18, -54. - 10th term

What is the 10th term of the Arithmetic Progression if x1=4 and d=5?