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How much did each dog weigh? |
2014-09-16 |
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From Fred:
LJ owned two dogs that weighed a total of 140 pounds. If one dog weighed 10 pounds more than the other, how much did each dog weigh
Answered by Penny Nom. |
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A tangent to a curve passing through a point not on the graph |
2014-09-15 |
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From Aquilah:
For the curve y = x2 + 3x, find the equations of all tangent lines for this graph
that also go through the point (3, 14).
Answered by Penny Nom. |
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A six team track schedule |
2014-09-15 |
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From Paul:
I need to make a six (6) team track schedule. It needs to be five (5) triangular (3 team) meets with each team playing each team twice
Answered by Victoria West. |
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Grandpa had an apple tree |
2014-09-14 |
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From Emma:
Grandpa had an apple tree. On the first day half of the apples plus one fell to the ground. On the second day, half of the remaining apples plus one fell to the ground. On the third day, half of what was left plus one fell to the ground. The tree was left with only one apple now. How many apples did the tree produce originally?
Answered by Penny Nom. |
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Two chords in a circle |
2014-09-13 |
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From Carlos:
Find the length of the radius of a circle in which a
chord of length 6 units is twice as far from the
center as a chord of length 12 units
Answered by Penny Nom. |
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The average of 9 numbers is 45 |
2014-09-12 |
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From rizza:
The average of 9 numbers is 45. If 90 and 88 are added to the set of numbers. What will be the resulting average?
Answered by Penny Nom. |
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The average age of a group of 10 students |
2014-09-11 |
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From sujan:
The average age of a group of 10 students was 20. The average age increased by 2 years when two new students joined the group . What is the average age of the two new students who joined the group?
Answered by Robert Dawson and Penny Nom. |
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The perimeter and diagonal of a rectangle |
2014-09-10 |
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From niniha:
the perimeter of a rectangle is 68cm.if the diagonal is 26, find its dimensions
Answered by Penny Nom. |
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Base 6 |
2014-09-10 |
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From Amanda:
using base 6, what is the next number after 25? 35? 55? and 455?
I need to be able to show the base 6 material.
Answered by Penny Nom. |
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35 base 6 |
2014-09-10 |
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From Amanda:
Sorry I am having trouble understanding base,
35 in base 6 means 3 10's and 5 ones, which is the same ____ in base 10?
Answered by Penny Nom. |
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211(base x)=152(base 8) |
2014-09-09 |
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From Vaidehi:
Find the base value (i.e. x):
211(base x)=152(base 8)
Answered by Penny Nom. |
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A second grade word problem |
2014-09-09 |
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From Beth:
How do I explain to my second grader how to find the answer to the problem:
My tens digit is 8 more than my ones digit. My ones digit can not be zero.
Answered by Penny Nom. |
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Problem solving |
2014-09-08 |
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From hubert:
a car left the house and travelled at an average speed of 60 kph.how many minutes will it take for the car to reach the school which is 8 km away from the house
Answered by Penny Nom. |
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A secret number |
2014-09-08 |
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From jai:
it is smaller than half of 100, it is more than 4 tens and less than 5 tens, the tens digit is two more than the ones digit , together the digits have a sum of 6..... What is my secret number?
Answered by Penny Nom. |
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The diagonals of a cube |
2014-09-04 |
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From Rukshanth:
How many diagonals does a cube have?
Answered by Harley Weston. |
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