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Denis
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Denis
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Join Date
02-17-2004
Last Activity
Today
12:27 AM
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Denis
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Yesterday,
11:11 PM
Denis
replied to a thread
How to work out Kg's produced increase over time
in
Finance/Business Math
Could be this simple: 5 min : 3000 - 2600 = 400 kg 30 min : ?
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2 replies | 39 view(s)
Yesterday,
11:05 PM
Denis
replied to a thread
Find the angle of elevation of T FROM P
in
Geometry and Trig
Don't give up Richie, one day you'll post a clear problem :rolleyes:
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6 replies | 87 view(s)
Yesterday,
08:48 PM
Denis
replied to a thread
table problem
in
Arithmetic
Are those co-ordinates? Where did you get it?
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3 replies | 45 view(s)
Yesterday,
03:57 PM
Denis
replied to a thread
Nervous?
in
Math Odds & Ends
Ahhhhh......ze good question!!
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2 replies | 46 view(s)
Yesterday,
02:12 PM
Denis
started a thread
Nervous?
in
Math Odds & Ends
As nervous as a cat walking through a room full of elderly ladies sitting actively in rocking chairs!!
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2 replies | 46 view(s)
Yesterday,
01:28 PM
Denis
replied to a thread
1.5 X + 2.5 Y + 3 Z greater than or equal to T?
in
Intermediate/Advanced Algebra
Names "x,y,z" not required. We have: T = 1a + 1.4b + 2.2c ; multiply by 5: 5T = 5a + 7b + 11c T = (5a + 7b + 11c) / 5 So, to get equal value,...
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2 replies | 56 view(s)
Yesterday,
09:10 AM
Denis
replied to a thread
Cryptic Moon?
in
Math Odds & Ends
T(ime)RUMP=behind ; aNUTter cutie!
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2 replies | 70 view(s)
01-18-2018,
08:25 PM
Denis
replied to a thread
Cryptic Corpse?
in
Math Odds & Ends
Dad Irish, mom French and the boss! So went to French school :D
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5 replies | 114 view(s)
01-18-2018,
09:13 AM
Denis
replied to a thread
Cryptic Corpse?
in
Math Odds & Ends
f(rench)rigid=stiff; frigid=icy
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5 replies | 114 view(s)
01-17-2018,
08:18 PM
Denis
replied to a thread
Formula from table with operation restrictions
in
Intermediate/Advanced Algebra
Glad to see I'm not the only one confused! Problem looks familiar: did you post a similar one earlier?
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14 replies | 372 view(s)
01-17-2018,
05:36 PM
Denis
replied to a thread
How to Rearrange formula? Solve 2(Pc - d) / Pc for Pc
in
Beginning Algebra
That's not a formula. It is an expression. You need an equation, like k = 2(Pc - d) / Pc Then you can "rearrange" in terms of d or Pc. Where did...
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23 replies | 536 view(s)
01-17-2018,
02:12 PM
Denis
replied to a thread
Figuring out Gross sales with only net sales and percentage of discounts
in
Finance/Business Math
15000 / (1 - .12) = 15000 / .88
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2 replies | 100 view(s)
01-17-2018,
12:26 AM
Denis
replied to a thread
Crypt Break?
in
Math Odds & Ends
pause = stop; p(and)a,use=exploit : nice one!! Btw, found out that "Panda Exploit" is an anti-virus.
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5 replies | 139 view(s)
01-16-2018,
11:49 PM
Denis
replied to a thread
Childhood
in
Math Odds & Ends
For youze not around in 2012...
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3 replies | 1029 view(s)
01-16-2018,
11:13 PM
Denis
replied to a thread
motion word problem: At 9:45 a bus left Point Reyes, CA, going north at 40 mph....
in
Intermediate/Advanced Algebra
Quickest way for this problem is pretend the 2 buses are leaving at same time, distance 80 miles apart (the 1st 2 hours bus#1 travelled). Left to...
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12 replies | 327 view(s)
01-16-2018,
07:14 PM
Denis
replied to a thread
Crypt Break?
in
Math Odds & Ends
No idea... Bear and Pa wrestling (5)
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5 replies | 139 view(s)
01-16-2018,
06:17 PM
Denis
replied to a thread
motion word problem: At 9:45 a bus left Point Reyes, CA, going north at 40 mph....
in
Intermediate/Advanced Algebra
Same problem: h-2 hours<----------(@35mph)A(@40mph)-------------------->h hours Bus leaves point A, travelling East at 40 mph. 2 hours later,...
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12 replies | 327 view(s)
01-16-2018,
01:51 PM
Denis
replied to a thread
Help w/ Eqn (from UK): Evaluate SX = [(E*C)+3*H-1] (A-1)[2*(G+D)-(B-2*F-1)]
in
Beginning Algebra
I see no "I" in the equation...I need new glasses:confused:
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8 replies | 253 view(s)
01-16-2018,
11:10 AM
Denis
replied to a thread
Investment+Revenue to NPV question using a discount rate of 4%, compounded annually
in
Finance/Business Math
On the positive side: you'll never forget that way again :rolleyes:
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3 replies | 162 view(s)
01-16-2018,
12:52 AM
Denis
replied to a thread
Investment+Revenue to NPV question using a discount rate of 4%, compounded annually
in
Finance/Business Math
The 10000's are at "beginning" of each year. So you have: 5000/1.04 + 20000/1.04^2 + 50000/1.04^3 -10000 - 10000/1.04 - 10000/1.04^2
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3 replies | 162 view(s)
01-15-2018,
01:03 AM
Denis
replied to a thread
Photocopier enlarging dimensions question
in
Geometry and Trig
Calculation example: 100 increased by 50% = 100 * 1.5 = 150 150 increased by 50% = 150 * 1.5 = 225
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2 replies | 122 view(s)
01-15-2018,
12:24 AM
Denis
replied to a thread
Homework Problem: In how many different patterns can these flowers be planted?
in
Beginning Algebra
Easier if you use numbers, like: 1's = rose, 2's = sunflowers, 3's = tulips Make first arrangement: 1 1 2 2 3 3 3 Next : 1 1 2 3 2 3 3
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8 replies | 324 view(s)
01-14-2018,
04:50 PM
Denis
replied to a thread
How does this instructor get, 1=((1/6)+(5/6))^3 ?
in
Intermediate/Advanced Algebra
Looks simple/evident to me: 1/6 + 5/6 = 1 ; so 1^3 = 1 Can you clarify your question?
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6 replies | 198 view(s)
01-14-2018,
01:49 PM
Denis
replied to a thread
Range of values for X for which x - 2x^2 > -6
in
Intermediate/Advanced Algebra
x - 2x^2 > -6 Set to equal -6: x - 2x^2 = -6 2x^2 - x - 6 = 0 Solve for x
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3 replies | 195 view(s)
01-13-2018,
08:40 PM
Denis
replied to a thread
Puzzle for Beginning Algebra Students
in
Math Odds & Ends
Agree 100%. **** Quickly leads to x^2 - 11x + 10 = 0, so x = 10 (1 is out of range). **** Another way for a "logical analysis" is use the...
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4 replies | 183 view(s)
01-13-2018,
01:00 PM
Denis
replied to a thread
Puzzle for Beginning Algebra Students
in
Math Odds & Ends
Since for algebra beginners, I presume this would be used to get students familiar with analysis et al. a = 1st die, b = 2nd die >I roll a...
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4 replies | 183 view(s)
01-13-2018,
12:07 PM
Denis
replied to a thread
Mystery Money Grid Puzzle - How do you solve?
in
Arithmetic
This may be helpful, as an example: https://www.algebra.com/algebra/homework/word/coins/Word_Problems_With_Coins.faq.question.152564.html
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9 replies | 360 view(s)
01-11-2018,
05:37 PM
Denis
replied to a thread
Mass, volume, density of chromimium-nickel alloy, "Nichrome"
in
Intermediate/Advanced Algebra
Richie, what you posted is utter confusion... If you're in process of learning how to solve equations, start with something simpler. I suggest...
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15 replies | 608 view(s)
01-10-2018,
09:14 PM
Denis
replied to a thread
Cryptic clue (Jan.9)
in
Math Odds & Ends
plain(simple)tiffs(disputes) Can't find it in thesaurus.com...
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5 replies | 184 view(s)
01-10-2018,
05:52 PM
Denis
replied to a thread
problem I can't solve: trapezoid w/ bases 14m,16m inscribed in square
in
Geometry and Trig
h = height of trapezoid area = h(14 + 16)/2 = 15h c = side of square c^2 - 15h = 675 h = (c^2 - 675) / 15 Did you get that far?
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7 replies | 183 view(s)
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About Denis
Basic Information
About Denis
Location:
Ottawa, Ontario
Interests:
puzzles
Occupation:
retired
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I'm just an imagination of your figment !
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Last Activity
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12:27 AM
Join Date
02-17-2004
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