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Equations/467738: the odometer on Mr. Sweden's car read 36,345.8 mi. when he filled
up with gas . The next time he bought gas , it took 8.6 gal. to fill up and
he noticed his odometer read 36,504.9 mi . how many miles per gallon does
Mr. Sweden's car get ?
1 solutions
Answer 320955 by rfer(12678)   on 2011-07-06 19:04:07 (Show Source):
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Angles/467740: Hello I am in need of help with a problem. The directions are, use a algebraic equation to find the measures of the two angles discribed. Begin by letting x represent the degree measure of the angle's complement or its supplement.
The measure of the angle is 81degrees more than twice that of its supplement.
I would really appreciate it if someone could help me. Thank you in advance
1 solutions
Answer 320954 by rfer(12678) on 2011-07-06 19:01:54 (Show Source):
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Money_Word_Problems/467624: At his son's birth, a man invested $2,000 in savings at 6% for his son's college education. In 19 years, how much, approximately, will be available?
1 solutions
Answer 320882 by rfer(12678) on 2011-07-06 14:01:49 (Show Source):
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Triangles/467633: The sum of the measures of angles of a triangle are 180. If the largest angle is nine time larger than the smallest angle, and the third angle is 70 degrees larger than the smallest angle, find the measure of the angles
1 solutions
Answer 320881 by rfer(12678) on 2011-07-06 13:58:09 (Show Source):
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Evaluation_Word_Problems/467634: Use scientific notation to divide the two numbers. Express answer using scientific notation; retain at least three decimal places. Please show all work.
(8.7•10^9)•(3.22•10^2)
1 solutions
Answer 320880 by rfer(12678) on 2011-07-06 13:56:05 (Show Source):
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test/467636: Hi i need help with ny practice test that my teacher gave me and is big package and im doing " Percent Word Problems"
1.what percent of 126 is 22 ?
2. what percent of 137.4 is 96?
3.79.9 is 90% of what ?
4.73% of what is 156.4 ?
1 solutions
Answer 320879 by rfer(12678) on 2011-07-06 13:52:16 (Show Source):
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Travel_Word_Problems/467496: Traveling via car a total distance of 1698 miles to Tx. In order to reach our location in Tx within a time of 24 hours, what speed will we have to average? What speed will we have to travel in order to achieve the requested average?
1 solutions
Answer 320876 by rfer(12678) on 2011-07-06 13:29:18 (Show Source):
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Linear-equations/467448: Please help me with this algebra problem.
Given the equation y=2/7x + 3, find the y coordinates of (-7) (0) and (7) please show work and if you can please plot the points and graph the linear equation. I just can not get this one!
1 solutions
Answer 320744 by rfer(12678) on 2011-07-05 22:00:29 (Show Source):
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Miscellaneous_Word_Problems/467428: In a mixture of concret there are two pounds of cement mix for each pound of gravel if the mixture contains a total of 93 pounds of these two ingredients how many pounds of gravel ate ther
1 solutions
Answer 320738 by rfer(12678) on 2011-07-05 21:20:41 (Show Source):
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Linear-systems/466968: i can't under stand if 3x+2y = -17
2x-5y = 14 the what is the process i can't under stand
what i need is Ex:
this i understand
X+2y=5
y=2x
X+2y=5
x+2(2x)= 5
x+4x=5
x+ 4= 5
5x and 5 divided by 5 y = 1 that i under stand but below i don't get it
THIS!!
Explanation:
Solving:
3x+2y = -17
2x-5y = 14
Using Substitution Method.
Expressing x as a function of y (from the first equation) x = (-17 -2y)/3
Substituting this expression into the second equation:
2(-17+2y)/3-5y = 14
Simplifying this expression:
(-19)y = 76
or
y = -4
Now, substituting y = -4 back into the x expressed as a function of y:
x = (-17-2y)/3 = -3
1 solutions
Answer 320358 by rfer(12678) on 2011-07-04 15:13:53 (Show Source):
You can put this solution on YOUR website!3x+2y=-17
2x-5y=14
2x=5y+14
x=2.5y+7
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3*(2.5y+7)+2y=-17
7.5y+21+2y=-17
9.5y=-38
y=-4
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3x+2*-4=-17
3x-8=-17
3x=-9
x=-3
---------------
2*-3-5*-4=14
-6+20=14
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Angles/466975: if the supplement of an angle is 10 less than thrice the complement of an angle, find the angle, its complement and supplement?
1 solutions
Answer 320353 by rfer(12678) on 2011-07-04 15:01:36 (Show Source):
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Travel_Word_Problems/467017: Hello,
I have a word problem on travel and distance.
Two cars are 400 miles apart. Both start at the same time and travel toward one another. They meet 4 hours later. If the speed of one car is 20 miles per hour faster than the other, what is the speed of each car?
Thank you
1 solutions
Answer 320350 by rfer(12678) on 2011-07-04 14:55:44 (Show Source):
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Geometric_formulas/466999: Hi I was hoping someone could help me with this problem! Thank you!! :)
Express in set-builder notation.
D = {5, 10, 15, 20,... }
1 solutions
Answer 320348 by rfer(12678) on 2011-07-04 14:53:49 (Show Source):
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Points-lines-and-rays/467032: Find the measure of the angle of a triangle if the measure of the first angle is twice the measure of the second angle and the third angle is 20 degrees more than the second angle
1 solutions
Answer 320346 by rfer(12678) on 2011-07-04 14:47:53 (Show Source):
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Equations/467050: I need help solving 3(P-2)=P+7
ok so I have 3P-6+P+7 then you would move the P to the other side making it -P so it would be 2P then move the 6 to the other side making it -6 so that would be 1 so 2P=1 then P= 1/2. Is that right? thank you,
1 solutions
Answer 320334 by rfer(12678) on 2011-07-04 14:18:48 (Show Source):
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Travel_Word_Problems/467025: A sled dog race extends for 1049 mi from Anchorage to Nome. If a musher is twice as far from Anchorage as from Nome, how many miles has the musher traveled?
1 solutions
Answer 320309 by rfer(12678) on 2011-07-04 11:14:54 (Show Source):
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Angles/466932: The measure of an angle is 52 more than the measure of its compliment. What is the measure of the angle?
1 solutions
Answer 320307 by rfer(12678) on 2011-07-04 11:11:06 (Show Source):
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Angles/466988: What are the measures of two complementary angles if the difference in their measure is 10
1 solutions
Answer 320302 by rfer(12678) on 2011-07-04 11:00:21 (Show Source):
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Volume/467011: Please help a show formula:
The Pet Kennel measures 26 in. long, 19 in. high, and 16 in. wide. What is the volume of the pet kennel?
1 solutions
Answer 320300 by rfer(12678) on 2011-07-04 10:57:17 (Show Source):
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