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How much tax does Zoe have to pay? |
2008-02-11 |
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From Kelly:
Rahsad pays $6.30 tax for a pair of shoes that is priced at $45.
His friend Zoe purchases another pair of shoes on sale for $25 in the same store.
How much tax does Zoe have to pay?
Solve the problem in two ways. Show your work.
What assumptions did you make?
Answered by Penny Nom. |
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A briefcase lock |
2008-02-11 |
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From Alfred:
A briefcase lock has 3 columns of numbers each 0-9. It opens with the correct combination of three numbers.
How many combinations are possible to open the lock.
Answered by Penny Nom. |
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The angles in a parallelogram |
2008-02-11 |
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From lauren:
if the sum of the measures are 360 in a parallelogram. a and d are same measures, c and b are same too. If c is twice the measure of a what are all the angles?
Answered by Penny Nom. |
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5x^2 - 45 |
2008-02-11 |
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From Tiana:
factor:
5x^2 - 45
Answered by Stephen La Rocque. |
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A 20 foot board is cut into two pieces |
2008-02-11 |
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From Sherry:
A 20 foot board is cut into two pieces. If we let x= the length of the longer piece, what is the length of the shorter piece?
Answered by Stephen La Rocque. |
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Small group activities |
2008-02-11 |
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From Rain:
I need to have a meet and greet with 40 people and need to do small group activities so that each person meets every other person but only once.
I'm not into math, need someone to tell me how many groups I would need to have?
Answered by Victoria West. |
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A square and an equilateral triangle |
2008-02-10 |
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From Emily:
A square pen and a pen shaped like an equilateral triangle have equal perimeters. Find the length of the sides of each pen if the sides of the triangular pen are fifteen less than twice a side of the square pen.
Answered by Stephen La Rocque. |
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Two job offers |
2008-02-10 |
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From Kelly:
Raja has been offered two jobs.
Each of these jobs takes 24 weeks to complete.
One job pays $3440 every 8 weeks. The other job pays $2700 every 6 weeks.
Raja wants to accept the job that pays more per week.
Show how to use equations to help Raja make her choice.
Answered by Penny Nom. |
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The circumference and radius of a circle |
2008-02-10 |
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From Ray:
How do you find the circumference or radius of an area presuming it is a circle. Or in other words how do you find the c or r given only the area is 50 sq metres
Answered by Penny Nom. |
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The diagonal of a cube |
2008-02-10 |
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From Praveen:
Given a Cube's diagonal, how does one find the edge of the cube.
Answered by Stephen La Rocque. |
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The range of a function |
2008-02-10 |
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From Rachel:
How do I find the range of this function?
(3x^3-2x^2+6x-7)/(x^2-3x-4)
Answered by Harley Weston. |
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7, 6, 5, 4, 3 and 2 digit numbers |
2008-02-10 |
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From Edward:
using the number 12345678 how many 7, 6,5,4,3 & 2 digit numbers can you make when not using any number twice in the same number
Answered by Penny Nom. |
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A flagpole and a statue |
2008-02-09 |
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From Krista:
A flagpole casts a ten meter (m) shadow at the same time as a six metre (m) statute beside it casts a two metre shadow. What is the height of the flagpole??
Answered by Steve La Rocque and Penny Nom. |
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La valeur absolue |
2008-02-09 |
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From Elodie:
que signifie la notation x entre 2 traits verticaux?
Answered by Claude Tardif. |
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The width of a rectangle is 4 less than twice its length. |
2008-02-09 |
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From Shawn:
The width of a rectangle is 4 less than twice its length. If the area of the rectangle is 72 cm,
what is the length of the diagonal
Answered by Stephen La Rocque. |
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