9 items are filed under this topic.
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Selling items at a reduced price |
2015-01-09 |
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From Kent:
I have an item I sell for $19.95 and make a profit of $10.97 for each sale.
If I reduce the price to $14.97, my profit is $5.99 each sale.
Is there a formula to determine how many more I would need to sell
at $5.99 per sale to make the same net cash (profit) as selling at $10.97 per sale?
Answered by Penny Nom. |
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Reducing by a scale factor of 1/3 |
2011-11-21 |
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From Sandra:
A rectangle with the dimensions of 6.3 cm and 5.8 cm is reduced by a scale factor of 1/3. What are the dimensions of the new image?
Answered by Penny Nom. |
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The rectangle is reduced to 90% of its original size |
2011-03-31 |
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From stephon:
A rectangle has a length of 4cm and a width of 8cm.
If this rectangle is reduced to 90% of its original size what will be the new length
Answered by Penny Nom. |
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The volume is decreased by 25% |
2008-11-17 |
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From Wanda:
If the volume of a sphere is decreased by 25%, what is the new equation?
Answered by Penny Nom. |
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A matrix problem |
2005-04-04 |
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From Alan:
| Let A = |
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1 | -1 | 0 |
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| 2 | -1 | 2 |
| a | b | c |
where a, b, c are constant real numbers. For what values of a, b, c is A invertible? [Hint: Your answer should be an equation in a, b, c which satisfied if and only if A is invertible.]
Answered by Judi McDonald. |
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Water in a cone |
2003-08-12 |
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From Adrienne:
Water is poured into a tank in the shape of an inverted right circular cone.ð The height of the tank is 8 m and its radius at the top is 4 m. a. Draw and label a picture to represent this situation.ð (I know how to do this) b. Identify all variable quantities. (h = 8m, r = 4m) c. Find an equation that relates the variable quantities, and reduce the number of variable quantities to two. I was thinking about the equation V = 1/3 pi r2 h, which is the Volume of a cone, but I am stumped as to how I am supposed to "reduce the number of variable quantities to two." Can you point me in the right direction?
Answered by Penny Nom. |
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Augmented matrix |
2002-12-31 |
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From Michelle:
I am trying to augment a matrix so that i can find the values of the variables a, b, and c. For the life of me i can't find a solution to the matrix: 3 -5 2 ' 22 2 3 -1 ' -9 4 3 3 ' 1 I thank you for your help, Michelle
Answered by Penny Nom. |
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Reduce 79,537/3,623,420 |
2001-12-13 |
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From Eliana:
How do you reduce 79,537/3,623,420.
Answered by Claude Tardif. |
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A system of equations in five unknowns |
2000-03-20 |
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From Will:
I have been having some problem with the following question for some time. I would appreciate any help on solving the problem or a solution. Q: Assume that a system of equations in the unknowns x1, x2, x3, x4 and x5 when converted to row echelon form gives .
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Answered by Penny Nom. |
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