 |
|
|
|
|
|
|
|
|
A circle in a square |
2020-04-02 |
|
Sabra pose la question :
Hello, I have twins in the 7th grade that are learning how to find
circumference of circles. I am struggling with figuring out how to
help my children to find the answer to this question:
Tye has a square piece of yellow felt that has an area of 81
square inches. She wants to cut the largest circle possible from the
material to create a sun for her art project. What is the area of the felt
circle? Use 3.14 for pi. Round to the nearest hundredth if necessary.
I wasn't sure if I am to find the area of the circle through finding the
area of the square or what steps we needed to follow to find the
answer. Once I can see how one is worked out step-by-step, I
usually can help them along with questions that are similar.
Penny Nom lui répond. |
|
|
|
|
|
|
Four digit combinations from 1-3-4-8-0 |
2020-03-26 |
|
nancy pose la question :
Good evening. I'm in a quandry. Can you help? I would like to know what 4-digit combinations can be derived from 1-3-4-8-0 no repetitions
Penny Nom lui répond. |
|
|
|
|
|
|
The center and radius of a circle |
2020-03-25 |
|
Riley pose la question :
so it says find the center and the radius of the below circle
x^2+(y-6)^2=121
i need help learning how to solve this
Penny Nom lui répond. |
|
|
|
|
|
|
A hemisphere and a cylinder |
2020-03-23 |
|
Monalizsha pose la question :
Wat is the volume and the surface area of the hemisphere and cylinder (both are together)
The height is 12cm of the cylinder and the diameter is 6cm
Penny Nom lui répond. |
|
|
|
|
|
|
Aaron and Bill's ages |
2020-03-12 |
|
Heather pose la question :
My granddaughter had this third grade math problem. Aaron is 4 times as old as his brother Bill. In ten years Aaron will be twice Bills age. What are their ages?
Penny Nom lui répond. |
|
|
|
|
|
|
Six-digit telephone numbers |
2020-03-12 |
|
Lulamile pose la question :
What is the probability that a six-digit telephone number has no repeated digits? The telephone number cannot begin with a zero
Penny Nom lui répond. |
|
|
|
|
|
|
A times table in base 5 |
2020-03-11 |
|
Felix pose la question :
Design a time table for numbers 1-10 in base 5
Penny Nom lui répond. |
|
|
|
|
|
|
Is there an equation to find what percent of 0 is 1? |
2020-03-09 |
|
Asher pose la question :
Question: Is there an equation to find what percent of 0 is 1.
I remember learning quite a long time ago that the answer inst 0 and it isn't infinity. I'm pretty sure it was something like %=0 approaching infinity or %=1 approaching infinity. And I know it depends what value you assign the numbers i.e. dollars or temperature. Furthermore, is asking "what percent 1 dollar is of 0 dollars" the same question as "what percent profit do you make from selling something worth 0 dollars for 1 dollar."
Thank you for your time and consideration
-Asher
Penny Nom lui répond. |
|
|
|
|
|
|
Sam and Claudia go on a bike hike |
2020-03-03 |
|
Christie pose la question :
Sam and Claudia start at the same time on a bike hike of 150 miles. Sam travels 3 miles per hour faster than Claudia and finishes the trip 8 1/3 hours before Claudia. At what rate in miles per hour does Sam travel?
Penny Nom lui répond. |
|
|
|
|
|
|
Covering 1 acre, 6" deep |
2020-03-02 |
|
Jim pose la question :
How many cubic yards does it take to cover 1 acre 6" deep.
Thank you Also, can you show me how you determined that answer.
Penny Nom lui répond. |
|
|
|
|
|
|
Fireman Fred needs to stay fit |
2020-03-02 |
|
Chamundeswari pose la question :
How do I explain this problem to a year 3 kid?
Fireman Fred needs to stay fit for his job. He runs 4.5km, 4 mornings, a week . if it takes him 4 minutes and 15 seconds on average to run 1km, how much time does he spend running over 4 weeks?
Penny Nom lui répond. |
|
|
|
|
|
|
The volume of a berm |
2020-02-28 |
|
jason pose la question :
how much dirt is in an 20'w 12't 1350'l berm
Penny Nom lui répond. |
|
|
|
|
|
|
A straight line graph |
2020-02-26 |
|
Penehafo pose la question :
I have a problem of drawing a straight line graph by the equation y=2x-1
Penny Nom lui répond. |
|
|
|
|
|
|
The height of an isosceles triangle |
2020-02-23 |
|
Reagan pose la question :
I need to find the height of an isosceles triangle with a base of 6 and sides of 4 units. How do I find it?
Penny Nom lui répond. |
|
|
|
|
|
|
Degrees, minutes and seconds |
2020-02-21 |
|
Jonathan pose la question :
If a cone has an angle of 22 degrees, when i place it flat on a surface, the new resulting central angle is now at 68.69123834, but how come when i saw it on my friend it say 68 degree and 40 minutes, what is this minute?
Penny Nom lui répond. |
|
|
