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Simonsky
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Simonsky
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07-04-2017
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02-03-2018
05:21 PM
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02-03-2018,
04:38 PM
Simonsky
replied to a thread
Stuck with geometric series question: £50,000 is borrowed for a house....
in
Intermediate/Advanced Algebra
Thanks Dr. P that 25P/2 is now clear to me.......maths requires the ability to see the same thing from different angles and I'm still poor at that. ...
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7 replies | 297 view(s)
02-03-2018,
02:41 PM
Simonsky
replied to a thread
Simplifying expressions with fractional exponents and a variable in the numerator
in
Intermediate/Advanced Algebra
I've scoured everything but the dark web looking for a solution - ha ha ha I know the feeling-I'm teaching myself at present and when you get stuck...
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9 replies | 331 view(s)
02-03-2018,
01:49 PM
Simonsky
replied to a thread
Stuck with geometric series question: £50,000 is borrowed for a house....
in
Intermediate/Advanced Algebra
The answer ( I caved in in the end) shows the modified formula as: 50,000 x 1.08^n - 25P/2(1.08^n-1) Not sure how the 25/2 other than 12.5 x 0.08...
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7 replies | 297 view(s)
02-03-2018,
12:17 PM
Simonsky
replied to a thread
Stuck with geometric series question: £50,000 is borrowed for a house....
in
Intermediate/Advanced Algebra
yes! The question was worded in a lot more detail so I thinned it out -thanks, you've helped me there! Simon
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7 replies | 297 view(s)
02-03-2018,
04:01 AM
Simonsky
started a thread
Stuck with geometric series question: £50,000 is borrowed for a house....
in
Intermediate/Advanced Algebra
Can't fathom out geometric series question despite knowing the formulas! The question: £50,000 is borrowed for a house. At end of each year 8%...
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7 replies | 297 view(s)
01-29-2018,
10:35 AM
Simonsky
replied to a thread
Geometric Progression: sum of 1st 3 terms is 4.88, sum to infinity is 10
in
Intermediate/Advanced Algebra
O.K I've worked it out -you have to use both formulas (finite and infinite). So:- a(1-r^3)/(1-r ) = 4.88 -------1-r^3 = +4.88(1-r)/a...
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5 replies | 179 view(s)
01-28-2018,
04:59 PM
Simonsky
replied to a thread
Geometric Progression: sum of 1st 3 terms is 4.88, sum to infinity is 10
in
Intermediate/Advanced Algebra
Dr. Peterson-thanks for response -you were right about my silly typos! The only formula I know for the sum of an infinite geometric progression is:...
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5 replies | 179 view(s)
01-28-2018,
04:18 PM
Simonsky
started a thread
Geometric Progression: sum of 1st 3 terms is 4.88, sum to infinity is 10
in
Intermediate/Advanced Algebra
Having trouble with the following -doesn't seem to be enough information: A geometric progression has first term a and common ration r. The sum...
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5 replies | 179 view(s)
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