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Sue's favourite number |
2016-01-12 |
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From Maria:
This is my son's homework. He is 7. Can you help?
Sue has a favourite number.
It is an even number.
It has 3 digits.
The digits add up to 15.
Find 10 numbers that could be Sue's number?
Answered by favourite number. |
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The perimeter of a triangular plot of land |
2016-01-11 |
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From Janelle:
I need to fence off 6.5 acres. The plot is triangular shape. How many feet would I be fencing off?
Answered by Penny Nom. |
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Three discounts |
2016-01-10 |
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From Tiffany:
Khairul wants to buy a sofa set. He is offered 3 successsive discounts of 10%,20% and 25%, and he can arrange them in any order he wants. Which order will benefit him the most? Explain your answer.
Answered by Penny Nom. |
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Water flowing through a rectangular drain |
2016-01-08 |
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From Tiffany:
the cross section of drain is a rectangle 30 cm wide. If water 3.5 cm deep flows through the drain at a rate of 22 cm/s, how many litres of water will flow through in one minute?
Answered by Penny Nom. |
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The area of a rectangle |
2016-01-08 |
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From ranjan:
if we make a rectangle with a 100cm of wire, then its area will be?
Answered by Penny Nom. |
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Integration of dx/(x^2+1)^3 |
2016-01-07 |
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From Ishank:
Integration of dx/(x^2+1)^3
Answered by Penny Nom. |
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A pipe is installed with a 2% grade |
2016-01-07 |
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From peter:
a sewer ditches to be 148 feet long. the pipe is installed with a 2% grade.
what would be total amount of fall be?
Answered by Penny Nom. |
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Three consecutive integers |
2016-01-07 |
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From ronn:
Three consecutive integers whose sum is 186
Answered by Penny Nom. |
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Two transport companies |
2016-01-06 |
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From Brynleigh:
The Sugar Sweet Company will choose from two companies to transport its sugar
to market. The first company charges $5096 to rent trucks plus an additional fee of
$200.75 for each ton of sugar. The second company charges $5500
to rent trucks plus an additional fee of $175.50 for each ton of sugar.
For what amount of sugar do the two companies charge the same?
What is the cost when the two companies charge the same?
Answered by Penny Nom. |
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A ratio word problem |
2016-01-06 |
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From Nina:
The length and the width of the rectangle is in the ration 5:3. Its area is 375m2. Find its perimeter.
Answered by Penny Nom. |
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A sequence |
2016-01-05 |
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From Mia:
the next three terms in each sequence. 0.4, 0.54, 0.68, 0.82,
Answered by Penny Nom. |
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A graph of the water level of a river |
2016-01-05 |
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From emoni:
Suppose that the water level of a river is 34 feet and that it is receding at a rate of 0.5 foot per day.
Answered by Penny Nom. |
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Four consecutive integers |
2016-01-05 |
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From sherica:
my teacher gave us an assignment and it says here that;
THERE ARE FOUR CONSECUTIVE INTEGERS.IF THE SMALLEST ONE IS x ,FIND THE SUM OF THE FOUR INTEGERS. that is the question ...thanks hope that u can answer it
Answered by Penny Nom. |
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Find the quadratic equation whose roots are -4 and 7 |
2016-01-03 |
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From sadiya:
Find the quadratic equation whose roots are -4 and 7
Answered by Penny Nom. |
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Markup as a dollar amount |
2015-12-30 |
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From Lori:
Hello,
I am trying to figure out mark up as a dollar amount. Is it the same as profit or is it a different number? And what is the formula to get to it, please? Thank you
Answered by Penny Nom. |
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