2006-08-15 05:14:53 · 27 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
think it out logically.
2006-08-15 05:18:23 · answer #1 · answered by shirley_corsini 5 · 0⤊ 0⤋
Am I the only one around that still uses slide rules to solve math problems?
I usually try to find a way to make the problem easier to solve. In fact, the whole principle of slide rules is based on that principle. Multiplication can be hard, but adding the logarithms of two numbers is usually very easy. Your slide rule provides an easy way to convert from a number to the logarithm of a number, and to convert the logarithm back to a number.
In fact, they make it even easier by just labeling the logarithm of the number as the number, which is why the scales on a slide rule are non-linear. In effect, you're solving multiplication problems by adding logarithms even though you don't actually see the logarithms.
Before logarithms were invented, people used trig tables to perform multiplication and division. Once again, a few trigonometric identities provided people with a 'calculator' which made multipication and division a lot easier than long division.
2006-08-15 12:34:59 · answer #2 · answered by Bob G 6 · 0⤊ 0⤋
If you're trying to find the average of a group of numbers, all you have to do is (1) add all the numbers together, and (2) divide the sum you come up with by however many numbers you started with to get the average. For example, if you had 5 people who took a test and the scores were 95, 90, 95, 75, and 80, add all those numbers together: 95+90+95+75+80 = 435, and since you have 5 test scores you divide 435 by 5 to get 87.
2006-08-15 12:22:06 · answer #3 · answered by sarge927 7 · 0⤊ 0⤋
find out what they want, what are the things you need to solve the problem, and what are you missing.
Ex. If the top spins 4 times a second, how many times will it spin in 10 seconds?
What they want: how many spins in 10 sec.
Things needed: spins per sec and time
missing: spins in ten sec
so multiply, etc answer is 40 spins
Or of course use your brain,, it is an average problem after all you know
2006-08-15 12:19:49 · answer #4 · answered by t_nguyen62791 3 · 0⤊ 0⤋
1+1=2 solved it
2006-08-15 12:19:18 · answer #5 · answered by Fiesty Redhead 2 · 0⤊ 0⤋
First,you should identify all that is needed from the question. Some things needed for solving may not be given but it may be understood there.Try to include such things.Then think of the step through which you can solve it.Include formulas if any.then,SOLVE IT!
2006-08-15 12:23:28 · answer #6 · answered by sarath 1 · 0⤊ 0⤋
to find an average number, you must first add all the numbers together, then divide that number by the total number of items together
For e.g. find average of 25,26&24,
25(item 1)+26(item 2)+24(item 3)=75
now, divide 75by3=25
average is 25
2006-08-15 12:29:07 · answer #7 · answered by SkYistheLIMIT 1 · 0⤊ 0⤋
I usually try it in my head, because I don't have free paper or a calculator around. If I can't do it, and it's not essential that I solve it, then I just give up.
2006-08-15 12:19:53 · answer #8 · answered by knivetsil 2 · 1⤊ 0⤋
With average math skills. now you know why you should have been listening in class, instead of fooling around.
2006-08-15 12:19:25 · answer #9 · answered by Insight 4 · 0⤊ 0⤋
Dare or Challenge a math teacher.
2006-08-15 12:18:40 · answer #10 · answered by Anonymous · 0⤊ 0⤋
You use average math skills.
2006-08-15 12:18:37 · answer #11 · answered by Savitari 1 · 1⤊ 0⤋