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Simple interest |
2010-11-17 |
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From Abeth:
At what simple interest rate will a sum of money triple itself in 5 years time?
Answered by Penny Nom. |
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A six digit number containing no zeros |
2010-11-15 |
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From John:
Find a Six digit number containing no zeros in which the first digit is three less than the third,
the third digit is three less than the fifth,and the second digit equals the sum of the last three digits.
Answered by Penny Nom. |
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Ordering fractions |
2010-11-14 |
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From Alexia:
I am having real trouble with how to order 18/11 , 2/5 ,6/15 from least to greatest can you give me a step by step real easy way to do it?
Answered by Penny Nom. |
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Will the ball clear the tree? |
2010-11-14 |
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From MK:
Sam hits a golf ball with a five-iron a distance of 120m horizontally. A tree 45m high and 35m in front of Sam is directly in the path of the ball. Will the ball clear the tree if the ball makes a parabolic curve and has a maximum height or 80m?
Answered by Brennan Yaremko. |
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What numbers can I be? |
2010-11-13 |
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From john:
my thousands digit is 2 times my ones digit.my hundreds digit is my ones digit plus 2. my tens digit is the difference between my thousands and hundreds digit what numbers can i be?
Answered by Penny Nom. |
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Four-digit numbers using 0,3,4,5,6,and 7 |
2010-11-12 |
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From Katy:
Using only the digits 0,3,4,5,6,and 7, how many distinct four-digit numbers exist that are greater than 4002 and less than 6732?
Answered by Stephen La Rocque. |
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The perimeter of a semicircle |
2010-11-11 |
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From gayathri:
the area of semicircle is 1925sq.cm find perimeter
Answered by Stephen La Rocque. |
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The area of an equilateral triangle |
2010-11-11 |
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From ginny:
If a equilateral triangle has side lengths of 41.33m how would i calculate the area?
if i don't know the height of the triangle?
thank you.
Answered by Penny Nom. |
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Three consecutive odd integers |
2010-11-07 |
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From karen:
find three consecutive odd integers such that twice the sum of the second and the third is 43 more that three times the first
Answered by Penny Nom. |
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z^5 - 3z^4 + 2z^3 + z^2 - 3z + 2 |
2010-11-06 |
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From Kumar:
would you please solve this problem, related to complex numbers.
Find all the roots of :
z^5 - 3z^4 + 2z^3 + z^2 - 3z + 2
Answered by Robert Dawson and Penny Nom. |
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Nickels as dimes |
2010-11-06 |
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From Exie:
Clara has the same number of nickels as dimes in each jar. there are 15 cent in one jar and 30 cents in the other. how many of each coin does she have in each jar?
I'm home schooling my granddaughter and this problem has me stumped..could you please help? thanks
Answered by Robert Dawson. |
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Bbippities, bops, and boos |
2010-11-05 |
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From Stacey:
six bippities equal three bops,and six bops equal two boos. How many
boos are there in one bippity,one bop, and one boo??
Answered by Stephen La Rocque. |
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Nickels and dimes |
2010-11-05 |
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From kebede:
John has 20 fewer nickels than dimes. The total of the nickels and dimes if $12.35. ow many of each coin does she have?
Answered by Penny Nom. |
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Terminal zeros |
2010-11-04 |
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From morgan:
if I have to multiply 1*2*3*4*5*6*7*8*9*10*11*12*13*14*15*16*17*18*19*20 how many terminal zeros do i get?
Answered by Penny Nom. |
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Four tires and a spare |
2010-11-04 |
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From stacey:
a car is driven 40,000 miles using four tires and a spare. the tires are
rotated so that each tire travels the same number of miles. What is the
number of miles traveled by each tire??
HINT: the answer is not 8,000 miles each..
Answered by Penny Nom. |
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