 |
|
|
|
|
|
|
|
|
My commsion is 2.5% |
2007-05-02 |
|
From susan:
How do you do percentage say i sold a house for 350,000 my commssion
is 2.5% how do i figure that out can you show the formula for calculator please thank you very much
Answered by Penny Nom. |
|
|
|
|
|
|
3, 6, 12, 21, 33, 48, 66 |
2007-05-02 |
|
From Siew:
I need to find the nth term formula for the sequence :
3, 6, 12, 21, 33, 48, 66
Answered by Stephen La Rocque. |
|
|
|
|
|
|
Continuity of y = |x| |
2007-05-02 |
|
From moulipriya:
Is the curve y = | x | continuous everywhere?
Answered by Penny Nom. |
|
|
|
|
|
|
The vertices of a triangle |
2007-05-02 |
|
From natakie:
Find the coordinate of the vertices of a triangle whose sides lie on the following three lines.
2x+5y-16=0, 4x-3y-6=0 and 3x+y+2=0
Answered by Penny Nom. |
|
|
|
|
|
|
The height of a triangle |
2007-05-02 |
|
From Cassie:
If you have a scalene triangle with sides measuring 8 units, 6 units, and
10 units (and 10 is the base) how do i find the height perpendicular to the
base of 10?
Answered by Penny Nom. |
|
|
|
|
|
|
Two concentric circles form an annulus |
2007-05-02 |
|
From A student:
In the diagram below, two concentric circles form an annulus. The
vertical line is tangent to the inner circle, and forms the diameter of
a third circle.
Explain why the areas of the annulus and third circle are the same.
Answered by Penny Nom. |
|
|
|
|
|
|
Simplify -36x squared over 18x |
2007-05-01 |
|
From Emily:
Simplify -36x squared over 18x
Answered by Penny Nom. |
|
|
|
|
|
|
Percentage change |
2007-05-01 |
|
From katie:
i no many people have asked about this but im still unsure what is percentage change i have my ks3 tomoro so please reply asap thankz
Answered by Penny Nom. |
|
|
|
|
|
|
A commutative group |
2007-05-01 |
|
From moulipriya:
If G be a commutative group , and H be a proper subgroup of G.
Then will H be always commutative?
Answered by Penny Nom. |
|
|
|
|
|
|
Angular velocity |
2007-05-01 |
|
From Bruce:
a tachometer of a Ford Explorer reads 2,100 rpm at 60 mph. Find the equivalent angular velocity in degrees per minute and radians per minute
Answered by Stephen La Rocque. |
|
|
|
|
|
|
A thousand, is it M or K? |
2007-05-01 |
|
From Larry:
I have heard that Million is annotated as MM. But Ihave heard two answers for Thousands (K, M). Which is correct?
Answered by Penny Nom. |
|
|
|
|
|
|
What percentage made a grade below 70? |
2007-05-01 |
|
From Dee:
There are 21 students in the class. 1 made a grade of 100, 2 made grades of 90 , 3 made 80,
4 made 70, 5 made 60, 6 made 50.
What percentage made a grade below 70?
I know 11 students made below a 70.
Please help me find the percentage,
Answered by Penny Nom. |
|
|
|
|
|
|
Find her score |
2007-05-01 |
|
From shelley:
barb had 16 right answers and 5 wrong answers in the math competition. Find her score
Jason had 27 right answers and 4 wrong answers in the math competition. find his score
Answered by Penny Nom. |
|
|
|
|
|
|
A tugboat's speed |
2007-04-30 |
|
From Amanda:
a tugboat must travel 24 miles against a 4 mile per hour current on the Potomac River and return. At what
constant speed must the tugboat travel to make the trip in 12 hours. Round answer to the nearest tenth mph.
Answered by Stephen La Rocque. |
|
|
|
|
|
|
What is 2x + 1? |
2007-04-30 |
|
From Cynthia:
Hi,
How do I solve this problem?
If -1/3x + 7= 16, what is the value of 2x+1
Thanks,
Cynthia
Answered by Stephen La Rocque. |
|
|
