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The sum of two numbers is 52 |
2014-09-01 |
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From Blake:
The sum of two numbers is 52 and the difference is 10. What are the numbers? i used to be real good at this stuff?
Answered by Penny Nom. |
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Interior angles in a parallelogram |
2014-08-30 |
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From xavier:
so, one of my math homework questions requires me to know how to find out how to find the interior angles in a parallelogram, the question is, "how many interior angles does a parallelogram have?"
Answered by Penny Nom. |
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Water usage in Ames |
2014-08-29 |
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From Abigail:
The City of Ames water treatment plant treats 7 million gallons of water per day on
average to meet water demands. Hypothetically, if water is withdrawn from a
groundwater system with an area of 51.6 square miles
(approximate area of Ames and surrounding area),
what is the depth of water in inches that would have to be added to
the groundwater system annually to replace the water that is withdrawn by the city?
Answered by Penny Nom. |
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Three collinear points |
2014-08-28 |
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From jhanavi:
p,q,r are three collinear points.p and q are(3,4) and (7,7) respectively and PR is equal to 10 units.find coordinates of R
Answered by Penny Nom. |
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Logarithms |
2014-08-28 |
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From effaryna:
how logarithms is applied in everyday life?
Answered by Penny Nom. |
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Using a bucket to fill a tub |
2014-08-27 |
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From Charlotte:
A bathtub needs to be filled with water. To fill the tub, a bucket needs to be filled then dumped into the tub. If the bucket is a cylinder with a radius of 6 in. and a height of 12 in, how many buckets will it take to fill the 5 ft x 3 ft x 3 ft tub.
Answered by Penny Nom. |
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Cutting a round cake so that it doesn't dry out |
2014-08-26 |
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From James:
I'm wondering if there's a simple way to calculate the area between two parallel chords of a circle equidistant from its diameter, or if I have the area, to find the distance between the two chords.
Here's my "problem". You may have heard of the way of cutting a round cake so that it doesn't dry out - make two parallel cuts (chords) the length of the cake, take the middle piece, then push the two pieces together.
So I know the area of a 12" cake, and I want say, exactly an eighth of the cake. How wide do I cut the centre piece?
Now to get even more difficult, the next day I want another eighth from the centre. How wide do I cut the next pieces, and so on...?
Thanks,
James
Answered by Harley Weston. |
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A car passing a bus |
2014-08-24 |
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From Athish:
the driver of the car is travelling at 36 km/hr and spots a bus 80 m ahead of him after 1 hr the bus is 120 m behind the car what is the speed of the bus
Answered by Penny Nom. |
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The inverse of f(x) = x^2 - x |
2014-08-22 |
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From Tyler:
Find the Inverse function of:
f(x) = x^2 - x
Answered by Robert Dawson. |
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The perimeter of a triangle |
2014-08-21 |
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From Phyllis:
What is the perimeter of a five acre triangle with one side being 250 feet and the second side would be at a 90 degree angle.
Thank you.
Answered by Penny Nom. |
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Filling three holes with stones |
2014-08-20 |
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From mark:
how many tonnes of hardcore/crushed stone would it take to fill
1 hole 9ft diameter 5ft deep
and 2 holes both 3ft diameter and 5ft deep
Answered by Penny Nom. |
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Revisiting 8 golfers in two foursomes |
2014-08-19 |
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From steve:
I noticed you had an answer on how can you put 8 golfers in even foursomes over 7 games so that everyone plays with everyone equally. However the formula showed the following sequence that was used but did not go past the second day. Can you change the 0s and 1s into the numbers 1 to 8 instead. Here is what you have written:
Day 0 : (0, 0, 0, 0, 1, 1, 1, 1)
Day 1 : (0, 0, 1, 1, 0, 0, 1, 1)
Day 2 : (0, 1, 0, 1, 0, 1, 0, 1)
Day 3 : (0, 1, 1, 0, 1, 0, 0, 1)
Day 4 : (0, 0, 1, 1, 1, 1, 0, 0)
Day 5 : (0, 1, 0, 1, 1, 0, 1, 0)
Day 6 : (0, 1, 1, 0, 0, 1, 1, 0)
Thank you so much for your anticipated help.
Steve
Answered by Harley Weston. |
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A barge of triangular cross section |
2014-08-18 |
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From tushar:
a barge of triangular cross section is 20m long 12 m wide and 6m deep.its floats in SW at a draft if 4m find its displacement
Answered by Penny Nom. |
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4 rounds of golf as three foursomes |
2014-08-18 |
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From Christopher:
For our golf trip, we will be playing 4 rounds of golf as three foursomes. We would like to have each person play with everyone at least once. Is this possible?
Answered by Victoria West. |
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A price increase and a consumption decrease |
2014-08-16 |
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From sujan:
If the price of petrol increases by 25% and Rajesh intends to spend only 15% more on petrol then by how much % should he reduce the quantity of petrol he buys?
Answered by Penny Nom. |
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