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Game of 24 |
2009-09-24 |
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From vanessa:
Using the following numbers 13,6,6, and 12 to equal 24. Using 5th grade math
Answered by Penny Nom and Claude Tardif. |
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Order of operations |
2009-09-24 |
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From aman:
my question is regarding the fact
i have a formula which looks like this :
(ratio 1 + ratio 2 divided by 2)
so my question is do i add first then divide by 2 or do it all together
Answered by Penny Nom. |
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Sandra's age |
2009-09-24 |
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From cindy:
Sandra is more than 20 years old and less than 60 years old. You can count by 7's to reach Sandra's age. Next year you will be able to count by 5's to reach Sandra's age. How old is Sandra?
Answered by Penny Nom. |
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5 x 8 + 6 divided 6 - 12 x 2 |
2009-09-24 |
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From Susan:
5 x 8 + 6 divided 6 - 12 x 2. I am not sure of the rules of operation for this type of question
Answered by Penny Nom. |
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The worth of a word |
2009-09-23 |
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From Kaliegh:
If each letter of the alphabet is worth one cent more than the previous
letter and the letter "a" is worth one cent. What words would have a
worth equal to 1 cent,10 cents,50 cents,87 cents 64 cents and $1.00?
Answered by Robert Dawson. |
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Pennies, nickels and dimes |
2009-09-22 |
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From Kiadadh:
Show 12 ways to come up with 28 cents using only pennies, nickles and dimes
Answered by Robert Dawson. |
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Toss a coin and roll a die |
2009-09-21 |
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From Celeste:
Can you please tell me how to set up this problem to find the answer. I know they are independent from there I don't know.
a coin and a regular six-sided die are tossed together once. What is the probability that the coin shows a head or the die has a 5 on the upward face?
Answered by Penny Nom. |
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A calculation from a ratio |
2009-09-21 |
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From Rob:
How do I calculate the height of a rectangle that has is 16:9 from only the width?
For example a rectangle is 1000 wide, what is it's height if it is a 16:9 ratio? What is the formula?
Answered by Harley Weston. |
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24 golfers: 4 days |
2009-09-21 |
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From Steven:
We have 24 golfers (6 A's, 6 B's, 6 C's & 6 D's) playing 4 days.
Each day a foursome consist of an A, a B, a C & a D player.
Can you give me a pairing list so that no two golfers will play on the same foursome for the 4 days?
Answered by Chris Fisher and Victoria West. |
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Probability: selecting students in a particular order |
2009-09-21 |
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From Rajshri:
A class has 100 students with roll numbers 1 to 100. Six students are selected, one after another, at random to form a team. Find the probability that the roll numbers of first three students selected are in ascending order and the roll numbers of the last four students selected are in descending order.
Answered by Robert Dawson. |
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Hexadecagon |
2009-09-20 |
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From Rick:
Is there an easy way to figure the even side lengths of a Hexadecagon in layman's
terms, so I know how long to cut the exterior support boards for my pool deck.
The pool is a 16' diameter Hexadecagon and my Wife wants a 4' wide splash deck
all the way around which would make the outside 24' in diameter.
Answered by Chris Fisher and Harley Weston. |
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Extraneous solutions |
2009-09-20 |
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From iyana:
what is an extraneous solution? what must you do to determine whether a extraneous solution?
Answered by Stephen La Rocque and Harley Weston. |
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Seven circles |
2009-09-20 |
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From Bobbi:
try to put number 1 to 7 in seven circles (one in the middle, 3 on top, 3 below) so the numbers in each row of three circles--vertical, horizontal, and diagonal -- add up to 12. Each number can be used only once.
Answered by Stephen La Rocque. |
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Grams to percent |
2009-09-20 |
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From brandy:
how do you convert 1.5 grams to a percent
Answered by Stephen La Rocque. |
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Segments of a ring gasket |
2009-09-20 |
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From Robert:
I am in the process of making an Excel spreadsheet in which our sales
team just needs to enter the outside diameter, inside diameter, and
number of segments to price ring gaskets that are too big to fit on a
sheet of material and need to be cut into segments. With your help I
was able to create a spread sheet that can calculate the Chord lengths,
and Segment height on a single gasket segment. I am now stuck trying to
come up with a formula to figure out the height of the second segment
when it is stacked on the first segment, then use it to add more
depending on the quantity of segments needed. I have an illustration
below showing 2 segments (of a gasket that was segmented into 4 pieces)
stacked together. I need to find a formula to get the dimension from
"A" to "B".
Answered by Harley Weston. |
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