radomes.openskiesproject.org
vanessasanchez
vanessasanchez vanessasanchez
  • 27-05-2016
  • Mathematics
Answered

If the first term in an arithmetic sequence is 15 and the tenth term is 69. What is the fourth term in the sequence?

Verified Answer :

caylus
caylus caylus
  • 28-05-2016

Hello,

\(a_{0}=15\) first term
\(a_{1}=15+r\) second term
\(a_{2}=15+2r\)  third term
...
\(a_{9}=15+9r\) is the tenth term =69

15+9r=69
==>9r=69-15
==>r=54/9=6
\(a_{3}=15+3r=15+18=33\)






Answer Link

Related Questions

Describe how digestion takes place in the body and list four organs you think are more important in the digestive system
Plz can someone help me
What does effective information usage contribute to? A. Popularity in social groups B. Monetary success C. An endless collection of facts D. A deeper unde
Agility refers to a persons level of flexibility true or false
Help me please Thanks
When Richard Henry Lee said that he was now convinced of the necessity of separation he was describing the influence of which of the following a Thomas Paines C
Gina has a traditional health insurance plan Her deductible is 500 The level of coinsurance for her plan is 8020 where 20 represents Ginas portion She does not
What are adjectives
What is bigger 20g or 002kg
discuss the system view of life