Welcome :: Homework Help and Answers :: Mathskey.com

Recent Visits

Q&A
Unanswered
Categories
Users
Ask a Question

Welcome to Mathskey.com Question & Answers Community. Ask any math/science homework question and receive answers from other members of the community.

Q&A Categories
BASIC MATH (93)
PRE-ALGEBRA (441)
ALGEBRA 1 (2,216)
GEOMETRY (864)
ALGEBRA 2 (2,745)
TRIGONOMETRY (1,186)
PRECALCULUS (1,903)
CALCULUS (2,791)
STATISTICS (129)
PHYSICS (658)
CHEMISTRY (136)
MECHANICAL ENGINEERING (64)
ELECTRICAL ENGINEERING (207)
Winplot Tutorials (2)

Most popular tags

solving-equations system-of-equations functions math slope-intercept-form physics homework-help trigonometric-identities integration substitution-method limits calculus

13,435 questions

17,804 answers

1,438 comments

777,497 users

Finding the sum of the first 27 terms of the A.P help!?

0 votes

Finding the sum of the first 27 terms of the A.P 10, 18, 26, ...

arithmetic-sequence

asked Jul 10, 2014 in ALGEBRA 2 by anonymous

Share this question

Google+ Facebook Twitter LinkedIn Reddit

Please log in or register to add a comment.

Please log in or register to answer this question.

1 Answer

0 votes

The arithmetic sequencs 10, 18, 26, ...

Formula for sum of the terms in A.P

Where n = number of terms, a = first term, d = common difference.

In this case

Substitute n = 27, a = 10 and d = 8 in

Sum of first 27 terms of the sequence 10, 18, 26.... is 3078.

answered Jul 10, 2014 by david Expert

Please log in or register to add a comment.

Related questions

finding sum of first 22 terms in an arithmetic sequence when 3rd term is 9 and 7th term is 31

asked Nov 22, 2013 in ALGEBRA 1 by andrew Scholar

arithmetic-sequence
sequence-series

The sum of the three no. in A.P(arithmetic progression)is 27

asked Oct 27, 2014 in ALGEBRA 2 by anonymous

arithmetic-sequence

IF A.P(arithmetic progression) has 13 terms whose sum is 143.

asked Dec 8, 2014 in ALGEBRA 2 by anonymous

arithmetic-sequence

In an arithmetic progression, the sum of the first half of the terms is 54,

asked Apr 24, 2014 in ALGEBRA 2 by anonymous

arithmetic-sequence

find the sum of the first 48 terms in the sequence 2, 2.4, 2.88

asked Feb 28, 2014 in ALGEBRA 2 by homeworkhelp Mentor

arithmetic-sequence
sequence-series
geometric-sequences

MEDAL (PLEASE PLEASE HELP) The sequence 15, 21, 27, 33, 39, ...., 75 has 11 terms.

asked Jul 24, 2014 in ALGEBRA 2 by anonymous

arithmetic-sequence

What is the sum of a 17-term arithmetic sequence,the first term is 7 & the last term is -105?

asked Feb 28, 2014 in ALGEBRA 2 by johnkelly Apprentice

arithmetic-sequence
sequence-series

The first 3 terms of an Arithmetic Progression are x+3, 2x+6 and 8.

asked Oct 24, 2014 in ALGEBRA 2 by anonymous

arithmetic-sequence

Find the first six terms of the sequence. a1 = 4, an = an-1 + 8

asked Jul 31, 2014 in ALGEBRA 2 by Tdog79 Pupil

arithmetic-sequence

Mean of 1st 4 terms = 77. When 5th & 6th term are included, mean is increased by 32. First term is?

asked Feb 28, 2014 in ALGEBRA 2 by mathgirl Apprentice

arithmetic-sequence
sequence-series

find the sum of the first eight terms of the series of :1/3,1/9,1/27,1/81...............

asked Nov 26, 2013 in GEOMETRY by mathgirl Apprentice

sum-of-geometric-series

Show that the sequence is arithmetic.Find the common difference and write out the first four terms.

asked Feb 16, 2015 in PRECALCULUS by anonymous

arithmetic-sequence
common-difference

three numbers are in G.P their product is 64 and sum is 124/5.find the numbers

asked Jan 14, 2017 in Winplot Tutorials by anonymous

arithmetic-sequence

find n with first term -3, sum is 31.5 and common difference is 2.5

asked Nov 22, 2013 in ALGEBRA 1 by mathgirl Apprentice

arithmetic-sequence
sequence-series

A partial sum of an arithmetic sequence is given. Find the sum. −17 − 16.3 − 15.6 −..... + 52.3?

asked Feb 13, 2015 in ALGEBRA 2 by anonymous

arithmetic-sequence

Find the sum of the first 6 terms of a geometric sequence

asked Jul 25, 2014 in ALGEBRA 2 by anonymous

geometric-sequences

What is the next five terms of each arithmetic sequence?

asked Oct 30, 2014 in ALGEBRA 2 by anonymous

arithmetic-sequence

Find the indicated terms of the arthmetic sequence. Please explain how.

asked Mar 12, 2014 in ALGEBRA 2 by homeworkhelp Mentor

sequence-series
arithmetic-sequence

find sum of first six terms in a series

asked Mar 3, 2014 in ALGEBRA 2 by angel12 Scholar

sum-of-geometric-series
sequence-series

In a geometric series first term is a =3 and n=3 and sum of terms =63

asked Feb 1, 2013 in ALGEBRA 2 by linda Scholar

geometric-series

Copyright © 2024 MATHSKEY. All Rights Reserved. Sitemap|Terms Of Use|Disclaimer|Contact Us|FAQ

...