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Travel_Word_Problems/319815: An airplane travels due north at 500mph. If the wind blows at 50mph from west to east, what is the resultant speed? Round to the nearest tenth of a mile. 1 solutions
Answer 229857 by Fombitz(13828) on 2010-07-09 09:29:34 (Show Source):
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Miscellaneous_Word_Problems/320910: A building contractor is to dig a foundation 42 feet long, 24 feet wide, and 9 feet deep. The contractor pays $5.00 per load for trucks to remove the dirt. Each truck holds 8 cubic yards. What is the cost to the contractor to have all the dirt hauled away?
Not sure how to solve problem 1 solutions
Answer 229853 by Fombitz(13828) on 2010-07-09 09:19:57 (Show Source):
You can put this solution on YOUR website!Find the volume of the dirt that needs to be hauled away.
Then find the number of truckloads to haul the dirt.
Multiply the number of truckloads by cost per truckload to get the total cost.
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Volume
 cubic feet
Convert from cubic feet to cubic yards.
 yd =  ft
 yd^3=  ft^3
 yd^3=  ft^3
 yd^3
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Each truck holds  yd^3.
So the number of trucks equals total volume divided by truck volume.
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Each truck cost $5.

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To remove the dirt, the contractor needs to pay $630.
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Travel_Word_Problems/320944: Suppose it takes 3 days for a space vehicle to travel from Earth to the moon. About how long would it take the same vehicle traveling at the same speed to reach Jupiter?
Closest distance from Earth to:
Moon 240,000 mi
Jupiter 391,000,000mi
Thank you,
Julie 1 solutions
Answer 229852 by Fombitz(13828) on 2010-07-09 09:13:44 (Show Source):
You can put this solution on YOUR website!Set up a ratio.
3 days is to 240000 as N is to 391000000.
 days
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Are we there yet?
It's that extra 1/2 day that makes it seems really long.
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Linear-equations/320932: Solve the system of equations by graphing.
y= 1/4 x + 5
3y= 3/4 x + 15 1 solutions
Answer 229845 by Fombitz(13828) on 2010-07-09 08:57:13 (Show Source):
You can put this solution on YOUR website!The second equation is the first equation multiplied by 3.
They are the same line.
This is a dependent system, every solution of line 1 is a solution of line 2, so there are infinitely many solutions.
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Geometry_Word_Problems/320802: Very confusing for me , need helping solving. Thank you.
Use the theoretical probability formula to solve the following problem.
Express the probability as a fraction reduced to lowest terms.
A 12-sided die is rolled. The set of equally likely outcomes is {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}. Find the probability of rolling a 4.
The probability of rolling a 4 is ____
(integer or simplified fraction) 1 solutions
Answer 229701 by Fombitz(13828) on 2010-07-08 14:13:06 (Show Source):
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Linear-equations/320771: Can you please help me work through the following:
I need to Graph the group of functions on the same coordinate system:
f(x)=1/7x^2, g(x)=1/7x^2+5, s(x)=1/7x^2-7
Jerry
jerry@san.rr.com 1 solutions
Answer 229697 by Fombitz(13828) on 2010-07-08 14:07:04 (Show Source):
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Polynomials-and-rational-expressions/320799: How can i use the rational root theorem and polynomail long division to factor the following completely? x^3+3x^2+3x+1 1 solutions
Answer 229696 by Fombitz(13828) on 2010-07-08 14:03:36 (Show Source):
You can put this solution on YOUR website!From the rational roots theorem,

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So  is a root and  is a factor of the polynomial.
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Now use polynomial long division to find the remaining quadratic,
First term:

Subtract that product from the original polynomial to get the remainder,

Second term:

Subtract that product from the previous remainder to get the new remainder,

Final term:

Subtract that product from the previous remainder to get the new remainder,

Gather all of the terms.

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A triple root at
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Graphs/320795: solve the following equation for x
5 cos x + 4 = 7 (solve for values of x between 0 and 180 degrees) 1 solutions
Answer 229693 by Fombitz(13828) on 2010-07-08 13:50:31 (Show Source):
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Linear-equations/320747: what is the equation of the line that has the given slope and passes through the given point .must be written in slope intercept form m=5/6,(8,6) 1 solutions
Answer 229672 by Fombitz(13828) on 2010-07-08 10:58:57 (Show Source):
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