9 articles trouvés pour ce sujet.
 |
|
|
|
|
|
|
|
|
Selling items at a reduced price |
2015-01-09 |
|
Kent pose la question :
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?
Penny Nom lui répond. |
|
|
|
|
|
|
Reducing by a scale factor of 1/3 |
2011-11-21 |
|
Sandra pose la question :
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?
Penny Nom lui répond. |
|
|
|
|
|
|
The rectangle is reduced to 90% of its original size |
2011-03-31 |
|
stephon pose la question :
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
Penny Nom lui répond. |
|
|
|
|
|
|
The volume is decreased by 25% |
2008-11-17 |
|
Wanda pose la question :
If the volume of a sphere is decreased by 25%, what is the new equation?
Penny Nom lui répond. |
|
|
|
|
|
|
A matrix problem |
2005-04-04 |
|
Alan pose la question :
| Let A = |
|
1 | -1 | 0 |
|
| 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.]
Judi McDonald lui répond. |
|
|
|
|
|
|
Water in a cone |
2003-08-12 |
|
Adrienne pose la question :
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?
Penny Nom lui répond. |
|
|
|
|
|
|
Augmented matrix |
2002-12-31 |
|
Michelle pose la question :
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
Penny Nom lui répond. |
|
|
|
|
|
|
Reduce 79,537/3,623,420 |
2001-12-13 |
|
Eliana pose la question :
How do you reduce 79,537/3,623,420.
Claude Tardif lui répond. |
|
|
|
|
|
|
A system of equations in five unknowns |
2000-03-20 |
|
Will pose la question :
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 .
.
.
Penny Nom lui répond. |
|
|
