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write the equation in the form of Ax+By=C.
1 solutions
Answer 201022 by Alan3354(30993)   on 2010-03-01 13:51:07 (Show Source):
You can put this solution on YOUR website! Please help me solve this equation: with a slope of -2/5 and Y intercept 9.
write the equation in the form of Ax+By=C.
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To be picky, you don't have an equation to solve.
You want to find an equation that fits the specs.
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slope and y-intercept are given, so
y = (-2/5)x + 9
5y = -2x + 45
2x + 5y = 45 is the equation in standard form.
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Travel_Word_Problems/275481: one type of air blower can fill a blimp in 6 hours working alone, while a second blower fills the same blimp in 9 hours working alone. how long will it take both blowers working together.I need to know exactly how you got to the conclusion, not just the answer which i know is 3 hours and 36 minutes. Thanks
1 solutions
Answer 200991 by Alan3354(30993) on 2010-03-01 10:36:10 (Show Source):
You can put this solution on YOUR website!Get it into units that can be added:
One blower does 1/6 of the job per hour.
The other does 1/9 per hour.
Together, they do 1/6 + 1/9 per hour.
1/6 + 1/9 = 15/54 jobs/hour
--> 54/15 hours per job
= 3.6 hours or 3 hr 36 minutes
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Use the shortcut, product/sum
6*9/(6+9) = 54/15 etc.
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Quadratic_Equations/275553: Why can't you have an exponent greater than 6 in a quadratic equation?
1 solutions
Answer 200972 by Alan3354(30993) on 2010-03-01 09:35:35 (Show Source):
You can put this solution on YOUR website!It's a matter of semantics.
quadratic is 2nd order, or exponent 2. It comes from quadrangle, which is rectangular.
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But, as the other tutor pointed out, it can be a quadratic in x^4, which gives and exponent of 8.
If the exponents are in order as in his example, 8, 4, 0, then it's a quadratic in x^4. It's 
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I don't know where you might have gotten the info about exponent 6.
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Numbers_Word_Problems/275452: The sum of two consecutive odd address numbers on a street is 9044. What are the two address numbers? You must construct an algebra equation to solve this. Answers by guessing the numbers without algebra earn no credit.
1 solutions
Answer 200901 by Alan3354(30993) on 2010-02-28 22:29:48 (Show Source):
You can put this solution on YOUR website!9044/2 = 4522 the center between the 2 numbers
--> 4521 & 4523
It's not guessing, but no equation is needed.
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The long way:
x + x+2 = 9044
2x + 2 = 9044
2x = 9042
x = 4521
x+2 = 4523
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Quadratic_Equations/275417: A rock falls from a tower that is 304 feet high. As it is falling, its height is given by the formula h=304-16t^2. How many seconds(in tenths) will it take for the rock to hit the ground (h=0)? (I believe you just set H=0 and then solve? Is that correct?)
1 solutions
Answer 200900 by Alan3354(30993) on 2010-02-28 22:27:26 (Show Source):
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Travel_Word_Problems/275400: I flew from Pheonix to Tucson, a distance of 120 miles, at a constant speed of 120 mph, I then returned at a constant speed of 60 mph. what is my average speed, trip distance, displacement, and average velocity?
1 solutions
Answer 200870 by Alan3354(30993) on 2010-02-28 21:10:33 (Show Source):
You can put this solution on YOUR website!I flew from Pheonix to Tucson, a distance of 120 miles, at a constant speed of 120 mph, I then returned at a constant speed of 60 mph.
what is my average speed? 240/3 = 80 mph
trip distance? 240 miles
displacement? relative to what?
and average velocity? Velocity is a vector that includes speed and direction. It's often used to mean speed, and speed has already been calculated.
I don't think averages apply to vectors, either.
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Numbers_Word_Problems/275343: The sum of three consecutive even numbers is 150. Find the numbers. I have tried tried a + b+c = 150. I have also tried. (x+1)+(x+2)+(x+3). I don't think I am doin this problem right. However, I know the consecutive even numbers before 150 are 148, 146, 144..Help.
Dawn
1 solutions
Answer 200866 by Alan3354(30993) on 2010-02-28 20:57:00 (Show Source):
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Exponential-and-logarithmic-functions/275387: What is the exponent of x^(2/3)=36?
what is the inequality of 2^(x+7) > 1/3^(2)
what is the exponent of 3^(2x-1)=1/243
1 solutions
Answer 200861 by Alan3354(30993) on 2010-02-28 20:40:19 (Show Source):
You can put this solution on YOUR website! What is the exponent of x^(2/3)=36?
The exponent of x is 2/3.
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what is the inequality of 2^(x+7) > 1/3^(2)
That question makes no sense. The statement 2^(x+7) > 1/3^(2) is an inequality.
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what is the exponent of 3^(2x-1)=1/243
The exponent of 3 is 2x-1.
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I suspect you want to solve these ??
What is the exponent of x^(2/3)=36?
Try "solve for x"
x^(2/3) = 36
Take the square root of both sides.
x^(1/3) = 6, -6
Cube both sides
x = 216, -216
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2^(x+7) > 1/3^(2)
2^(x+7) > 1/9
(x+7)*log(2) > log(1/9)
x+7 > log(1/9)/log(2)
x > log(1/9)/log(2) - 7
x > -34.34258656
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3^(2x-1)=1/243
243 = 3^5
3^(2x-1)=3^(-5)
2x-1 = -5
2x = -4
x = -2
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Rational-functions/275120: i am trying to factor this polynomial. 25x(x is squared)-36y(y is squared). the simpler ones i have figured out but this one i am second guessing myself. thanks for the help.
1 solutions
Answer 200705 by Alan3354(30993) on 2010-02-28 10:37:41 (Show Source):
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Rational-functions/275122: i am having difficulty w ith a problem. i need to factor this polynomial. 4x(4)-4x(2)+1. the parenthesis are for the power to the x. i really would appreciate the help. thank you, Kristina
1 solutions
Answer 200704 by Alan3354(30993) on 2010-02-28 10:33:02 (Show Source):
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decimal-numbers/275121: hello, My name is Jasmine
I am trying to solve with this equation c(g)=3.03(g).
what does this number represent 3.03
find c(2)
find c (9)
how do I work this
1 solutions
Answer 200703 by Alan3354(30993) on 2010-02-28 10:29:57 (Show Source):
You can put this solution on YOUR website!I am trying to solve with this equation c(g)=3.03(g).
what does this number represent 3.03
find c(2)
find c (9)
how do I work this
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I think it's c(g) = 3.03*g (3.03 times g)
3.03 is a coefficient, for a multiplier.
It's also the slope of the graph.
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For c(2), sub 2 for g
c(2) = 3.03*2 = 6.06
c(9) = 3.03*9 = 27.27
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Angles/275119: Without solving tell if the system is inconsistent, the equations are dependent or neither
x+5y+31
2x-4y=-8
1 solutions
Answer 200701 by Alan3354(30993) on 2010-02-28 10:22:12 (Show Source):
You can put this solution on YOUR website!Closer.
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Without solving tell if the system is inconsistent, the equations are dependent or neither
x+5y+31
2x-4y=-8
One of the + signs in the 1st eqn should be and equal sign.
In either case, the slopes of the 2 lines will be different, so the eqns are independent and consistent.
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Not inconsistent.
Not dependent.
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Angles/275118: Solve the system by substitution or elimination. If a system is inconsistent or has dependent equations, say no.
x-4y+3
x+5+4y
1 solutions
Answer 200699 by Alan3354(30993) on 2010-02-28 10:20:52 (Show Source):
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Pythagorean-theorem/275017: Pythagorean triplets represent a special relation that both satisfy the Pythagorean theorem and as well as another characteristic. It is this additional characteristic that I am especially looking for. There are several formulas that will produce Pythagorean triplets. I need to find at least one. I need at least 5 other examples of triplets, not including 3-4-5.
1 solutions
Answer 200690 by Alan3354(30993) on 2010-02-28 08:51:07 (Show Source):
You can put this solution on YOUR website!In addition to the extensive list provided by the other tutor, it's interesting that
But, there are no instances of integers that fit
 for any n <> 2
This was recently proven after centuries of effort - Fermat's Last Theorem.
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percentage/275012: How do I manually work out the percentage of something : eg. 18 students out of 25 is 72% - how do I work this out without using a calculator. Thank you kindly, Susan
1 solutions
Answer 200672 by Alan3354(30993) on 2010-02-27 22:11:06 (Show Source):
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Trigonometry-basics/274891: Suppose an ant walks counterclockwise on a unit circle from the point (1,0) to the endpoint of the radius that forms an angle of 240 degrees with the positive horizontal axis. How far has the ant walked? Give an exact answer (do not round off)
1 solutions
Answer 200671 by Alan3354(30993) on 2010-02-27 22:09:31 (Show Source):
You can put this solution on YOUR website!Suppose an ant walks counterclockwise on a unit circle from the point (1,0) to the endpoint of the radius that forms an angle of 240 degrees with the positive horizontal axis. How far has the ant walked?
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The circumference of the circle is 2pi
240 degs is 2/3 of it, = 4pi/3
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Probability-and-statistics/274961: A brown paper bag contained 10 cubes, colored either red or yellow. Each of 25 students selected a cube from the bag without looking, recorded the color, and replaced the cube. 13 students picked a red cube and 12 students picked a yellow cube.
1 solutions
Answer 200668 by Alan3354(30993) on 2010-02-27 21:28:21 (Show Source):
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