to screw with people for personal entertainment. Who knows if he/she
even called the cleaning company or if he/she even owns furniture. It
was just time for another ridiculous story from a bored housewife...
not leaving a message with someone, anyone, regarding your complaint in fact is
lack of trying. You had the chance to leave a voicemail, you didn't. you had the
chance to leave a message with the receptionist, you didn't.
the problem was and is you
You must have too much idle time to waste.
I don't want to deal with a guy(s) who needs calculator
to figure that out. That is elementary school algebra.
Don't even call it math.
I just went thru similar experience trying to find a reasonable
contractor to replace our aging furnace. I had two model choices
with result of manual J calculation I did.
4 guys in a row JUST gave me total cost+tax. 5th guy did his own
manual J which was very close to my calculation. Needs 100K BTU
96% AFUE furnace, 2 stage variable speed).
His quote had detailed itemized costs including tax. Surprisingly his
price was the lowest. He knows what he is talking about and doing.
No sales man no fancy office, but doing this for 35 years with good
references.(my BIL who is in commercial side of HVAC business confirmed
this independent guy's reputation. Once local tech college instructor)
Only thing I have to do to help him is setting up wireless 'stat
(I have two of them already, one as a back up 916MHz one and 433MHz
Really? Do you really fault a guy who cleans furniture for a living
for using a calculator to figure out a 40% discount on a $150 job?
Would you also expect him to figure the tax on the discounted amount
in his head? I've lived in places where the total sales tax might be
something like 8.25%. Sure, I'm not putting a man on Mars with these
calculations, but I wouldn't be embarrased to use a calculator to find
8.25% of $90.
HeyBub may have too much time on his hands, but you are way too harsh
on your contractors.
Did he do the calculations in his head? Where's the line where it's OK
for your contractors to pull out a calculator?
Hide quoted text -
Easy approach to doing percentages in yer head. Stuff like tips,
50% off is easy. Divide by two, or one half.
10% is easy. Divide by 10.
60% is merely one half plus one tenth, in this case, 75 + 15.
65% is halving the 10% and adding it to the pile.
18%? Divide by 10, halve the 10%, Halve the 5%, and add 'em all up.
That's only 17.5%, but close enough to 18% fer a tip.
Think in terms of cutting everything in half, then adding it back up.
Even a senile old geezer like myself still has enough brain cells left
to pull that trick off. ;)
I know, I know, but wanted to keep it braindead simple. I think jes
about anyone can divide by 10.
I did two things that sharpened in-my-head math skills, despite my
taking algebra and trig all thru mid/hi school. I kept score at
bowling and learned to count change back to cash customers. Man,
those bowlers want their updated score before the pins even stop
Divide by? To the left, obviously; make the number smaller.
Well, that's how I divide by 10. It's a *lot* easier.
I used to be able to estimate a complicated engineering problem to at least
one or two significant digits. Then ('73) I bought a scientific calculator.
The skill was gone within a couple of years. Now I get fouled up on the order
of magnitude (though I can tell when I get it totally wrong). Children using
calculators in school is nuts.
Yep. One trick I learned was to estimate the answer in advance. This keeps
one from making a mistake in orders of magnitude.
One of the Manhattan scientists, Enrico Fermi, in observing the Trinity
test, took a piece of paper from his pocket, tore it into small pieces and,
as the shock wave reached his position, let them drop.
From the distance they were blown, he was able to estimate the magnitude of
the explosion to within 50%.
I know exactly what you mean. I found myself forgetting exponents and
sci notation. All a part of growing old.
Lately, I've been learning basic electronics theory. Boy, talk about
dusting off some old math skills. I kinda welcome it. Keeps my
geezer brain churning. I bought Schaum's pre-calculus outline and
discovered even that was a bit much too soon for this old dustbin
brain, so found this high school algebra refresher website. Math from
and too almost any level and very well done. Brings it all back:
Dusted off and am relearning how to use my HP 48GX, too. Never
thought I'd find myself doing math as a way to relax. ;)
Ooo! Wish I'd thought of that. But no, I gave slightly over half the $200 to
another company. The other company didn't charge a $45 service call, $8 for
chemicals, or threaten me with perdition if I didn't include a ScochGuard
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