 |
|
|
|
|
|
|
|
|
Simultaneous equations |
2008-02-29 |
|
From CONOR:
I was wondering if you could help me with this problem
7x - 5y = -1
3y = 4x
Answered by Penny Nom. |
|
|
|
|
|
|
A package of supplies is dropped from a plane |
2008-02-29 |
|
From beth:
An airplane flies west at a speed of 200m/s. A package of supplies is dropped from the plane to some campers. if the plane is at an altitude of 1000meters, how far from the campers should the package be dropped to land near them? ignore wind resistance.
Answered by Stephen La Rocque. |
|
|
|
|
|
|
The profit was what percent of the cost? |
2008-02-29 |
|
From sierra:
The profit was what percent of the cost?
Here is some more of that whole problem.
Selling Price-$26.60
Discount-$6.65
Sale Price after the Discount-$19.95
The Profit-$5.95
Answered by Penny Nom. |
|
|
|
|
|
|
150 decimeters is how many centimeters |
2008-02-29 |
|
From gayle:
150 decimeters is how many centimeters
Answered by Penny Nom. |
|
|
|
|
|
|
Is a square a rectangle? |
2008-02-29 |
|
From Jaime:
Is a square a rectangle?
Answered by Penny Nom. |
|
|
|
|
|
|
GST and PST |
2008-02-28 |
|
From Donna:
If I have a total amount and would like to know the amount of GST paid (5%) and I would have also paid PST (7%) in the total, can you give me a number to multiply by to get the answer
Answered by Penny Nom. |
|
|
|
|
|
|
The perimeter of a sector of a circle |
2008-02-28 |
|
From erica:
What is the perimeter of a sector if the radius is 18 and the middle arc is 150?
Answered by Penny Nom. |
|
|
|
|
|
|
A new carpet |
2008-02-28 |
|
From Rhiannon:
The Gatlins are buying a new carpet for their house. They need about
1,175 square feet of carpet. The carpet they buy is sold by the square yard.
Estimate the number of square yards of carpet they need. Do I use the
formula to find the volume or are?
Answered by Penny Nom. |
|
|
|
|
|
|
TV watchers on Thursday and Saturday |
2008-02-28 |
|
From flor:
Thursday is the most watched night on television with 20 million more viewers than Saturday. the total for both nights is 102 million. how many viewers watch on each of these nights?
Answered by Penny Nom. |
|
|
|
|
|
|
Some solid figures |
2008-02-28 |
|
From tiffany:
What solid figure could have? It has 4 more edges than vertices,
Answered by Penny Nom. |
|
|
|
|
|
|
The radius of a circle |
2008-02-28 |
|
From SteVonee:
Estimate the radius of a circle with the given circumference that is 192ft
Answered by Penny Nom. |
|
|
|
|
|
|
3 consecutive odd integers |
2008-02-28 |
|
From Pat:
For 3 consecutive odd integers, twice the first integer, plus 5 more than the second integer, plus three less than four times the third integer equals -85. Find the 3 consecutive odd integers.
Answered by Penny Nom. |
|
|
|
|
|
|
A triangle problem |
2008-02-28 |
|
From Jessica:
Triangle ABC Angle C is 3 times angle A angle B is 30 degrees less than angle C what are the measurements of the angles
I have the measurements and I have the Equation but I can't figure out quite how to solve it the proper way
Answered by Stephen La Rocque. |
|
|
|
|
|
|
It takes Mark 3 hours to paint a picture |
2008-02-27 |
|
From Suzanne:
If Mark takes 3 hours to paint a picture and it takes Henry three times as
long to paint the same picture, then:
How many pictures can each paint in 10 hours?
How many pictures can they paint together in 10hours?
Answered by Penny Nom. |
|
|
|
|
|
|
Rolling a 5 before an 11 |
2008-02-27 |
|
From Jeremy:
If rolling two six-sided dice, what is the probability that a sum of 5 will be rolled before a sum of 11?
Answered by Stephen La Rocque and Harley Weston. |
|
|
