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Josh and John were both exposed to the flu |
2005-12-16 |
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From Dudley:
Josh and John were both exposed to the flu. John has a 25% chance of getting it, while Josh has a 75% chance of getting it. What are the chances that at least one of them has the flu?
Answered by Penny Nom. |
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Folding a sheet of paper |
2005-12-15 |
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From Victoria:
The current problem is to take a normal 8 1/2 x 11 sheet of paper, take a corner and fold it to meet the opposite corner, and (without actually measuring) produce a formula to describe the result fold/crease.
Answered by Penny Nom. |
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Percentage increase |
2005-12-15 |
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From Luiz:
I would like to know how much net income in % we have increased from 2005 to a 2006(projection).
2005 Net Income Actual: $1,599,887
2006 Net Income Budgeted: $2,067,339
Answered by Penny Nom. |
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Mrs. Faria lives on an island |
2005-12-15 |
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From Julie:
Mrs. Faria lives on an island 1 km from the mainland. She paddles her canoe at 3 km/h and jogs at 5 km/h. the nearest drug store is 3 km along the shore from the point on the shore closest to the island. Where should she land to reach the drug store in minimum time?
Answered by Penny Nom. |
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Solving with fractions |
2005-12-14 |
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From A student:
Solve:
1. 3/10k - 1 = 1/2
2. 7 3/4 = 3/8h + 6
3. About how heavy should an object be before you start to measure the object in tons instead of pounds? Explain
Answered by Penny Nom. |
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Find the nth term |
2005-12-14 |
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From Kevin:
How do i find the nth term of 1 4 9 16 25 36
Answered by Penny Nom. |
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5(x-3)/4 =x+1 |
2005-12-14 |
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From Jennifer:
I have two problems i am stumped on I don't know how to help my daughter.
5(x-3)/4 =x+1
3(x+12)/5 =x +2
Answered by Penny Nom. |
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Pat invested a total of $3000 dollars |
2005-12-14 |
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From Duane:
Pat invested a total of $3000 dollars. part of the money yields 10 percent interest per year and the rest yields 8 percent interest per year if the total yearly interest is $256 how much did pat invest at 10 per cent and how much at 8 percent.
Answered by Penny Nom. |
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A 24 sided polygon |
2005-12-14 |
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From Matt:
I would like to know if there is a name for a 24 sided shape
Answered by Penny Nom. |
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A loan of $50,000 |
2005-12-14 |
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From Fre:
A loan of $50,000 taken today is payable within five years.
a. determine the annual payments within to be made to repay the loan if interest is charged at a rate of 10% compounded annually
b. show the amortization schedule
Answered by Penny Nom. |
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Inclusive definitions |
2005-12-14 |
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From Layla:
recently the solvable quandary of 5+5+5=550 came up (the question says that you have to put 1 straight line somewhere in the equation to make it true with out turning the "=" into a "not=" sign).
So two answers were put forward:
545+5=550 (the use of a line converting a + into a 4)
AND
5+5+5(less than or equal to)550
There is currently an argument about the second solution. The disagreement is about whether this sign can be used. One person is arguing that the "less than or equal to" sign defines that the number on the left is in the range 550 and below. The other is saying that since the number (which is clearly defined with no variables) can never equal 550, then the "less than or equal to" sign cannot be used in this case.
Which one is the correct definition?
Answered by Walter Whiteley. |
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I want to place four sticks equal distance apart into a tennis ball. |
2005-12-13 |
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From Bev:
I want to place four sticks equal distance apart into a 3 inch tennis ball. The circumference of the ball is 9 inches. Where should I place the sticks and how many inches apart.
Answered by Chris Fisher. |
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Adding 10 and multiples of tens to one and two digit numbers |
2005-12-13 |
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From Meghan:
I am teaching in a grade 2/3 class and I am struggling with trying to find a simple way of explaining to the students how to add 10 and multiples of tens to one and two digit numbers.
Answered by Diane Hanson. |
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A regular octagon is inscribed in a circle |
2005-12-13 |
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From Carlin:
A regular octagon is inscribed in a circle of radius 15.8 cm. What is the perimeter of the octagon?
Answered by Penny Nom. |
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Is a zero considered an even or odd number? |
2005-12-13 |
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From Sylvia:
Is a zero considered an even or odd number?
Answered by Penny Nom. |
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