08/10/14

solve the system of equations
x - y + z = -7 x + y + z =1 x + y - z = 9
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08/07/14

math question
I have a 500 gallon tank at 80%. If I remove 100 gallons would the tank be 60%?
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07/31/14

If Paul drinks 8,(8oz) bottles of powerade per day. If john drinks 12.8 oz of powerade after a hard workout he has consumed what fraction of his average
can you help me with this 
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07/31/14

A soda is 90 calories. How many calories are in 6 sodas
Help me 
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07/31/14

in a bag there are 6 red marbles , 4 blue marbles, and 10 green marbles. what percentage of the marbles are blue
can you help me with this  please    Thanks 
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07/31/14

can someone explain imaginary numbers for me please
algebra 2 is complicated
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07/31/14

the cube of a number equals sixty-four times the same number
cube of a number equals sixty-four times the same number
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07/31/14

math problem
help!Jeremy is playing a board game and rolls two number cubes. Let A = {the sum of the number cubes is even} and let B = {the sum of the number cubes is divisible by 3}. List the outcomes in A ∩ B.
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07/31/14

Sally purchased notebooks at $2.50 apiece, and pens at $1.00 apiece. If she bought a total of 12 items for $24.00, how many notebooks did she buy?
Sally purchased notebooks at $2.50 apiece, and pens at $1.00 apiece. If she bought a total of 12 items for $24.00, how many notebooks did she buy?
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07/28/14

line L passes through (14,-5) and line P is the graoh of 7x-5y=11. If L is perpendicular to line P what is the slope intercept form equation of L?
complete the equation of the line in slope intercept form.  If any # in the equation is not an integer, enter it as a fraction in simplest form
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07/28/14

write the slope-intercept form equation of the line with slope 2/3 that passes through the point (0,-3)
enter any non-integer coefficient as a fraction
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07/28/14

Line L passes through (2,-4) and line P is the graph of y+3=-5(x+0). If L is parallel to p what is the slope intercept form equation of L?
complete the equation of the line in slope intercept form
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07/28/14

write the equation of the line that passes through (12,8) with slope -2/3
write the equation in both point slope and slope intercept form
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07/11/14

help with neutrons, protons and carbon-12
1.  the number of neutrons and protons in an atom indicates its   a.  mass number b. atomic mass c.  atomic number   is the answer a?   2.  carbon 12 and carbon 14   a.  are isotopes b. ... more
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07/11/14

Please help me solve this equation: -(6y-5)-(-5y+4)=3
solve this equation using factoring.
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07/11/14

$1000 spent on radio advertising, weekly sales increase by $101,000, $1250 spent on radio advertising, weekly sales increse by $126000.
Assuming that sales increase according to a linear equation, by what would sales increase when $1500 is spent on radio advertising?
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07/10/14

is 2x^2+9xy+7y^2 in standard form or acceptable form as an answer
The problem is: (2x+7y)(x+Y)   I used the foil method to solve but  is my final answer 2x^2+9xy+7y^2 in standard form or acceptable answer form?
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