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Travel_Word_Problems/405696: How long does it take to travel .2 miles at 35 miles per hour?
1 solutions

Answer 286505 by rfer(12644) About Me  on 2011-02-07 17:52:17 (Show Source):
You can put this solution on YOUR website!
.2/35=0.0057 hrs


Travel_Word_Problems/405552: Two trains leave stations 374 miles apart at the same time and travel toward each other. One train travels at 80 miles per hour while the other travels at 90 miles per hour. How long will it take for the two trains to meet?
1 solutions

Answer 286445 by rfer(12644) About Me  on 2011-02-07 13:35:35 (Show Source):
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170 mph approach speed
374/170=2.2 hrs = 2 hrs 12 min


test/405554: Two less then twice a number equals the number plus 12. What is the number?
1 solutions

Answer 286444 by rfer(12644) About Me  on 2011-02-07 13:33:48 (Show Source):
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2x-2=x+12
x=14
----------
2*14-2=x+12
26=26


Travel_Word_Problems/405318: If I am going 15 mph, how long will it take me to travel 5 miles?
1 solutions

Answer 286305 by rfer(12644) About Me  on 2011-02-06 21:22:43 (Show Source):


Travel_Word_Problems/405322: If my speend is 60mph and my distance is 10 ft what is my time and how do I solve it by showing work
1 solutions

Answer 286304 by rfer(12644) About Me  on 2011-02-06 21:21:46 (Show Source):
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10/5280=0.00189 miles
D=rt
0.00189=60t
0.00189/60=t
t=0.0000312 hrs
t=3.12X10^-5 hrs


test/405321: T-1/8>1/2
1 solutions

Answer 286303 by rfer(12644) About Me  on 2011-02-06 21:17:29 (Show Source):


Travel_Word_Problems/405335: Sydney rode her bike to school at an average speed of 15 miles per hour. What was her speed in feet per minute?

1 solutions

Answer 286302 by rfer(12644) About Me  on 2011-02-06 21:15:44 (Show Source):
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15/60=0.25 mi/ min


Volume/405280: Given a right triangle with a=3 and c=11, find b to three decimal places.
1 solutions

Answer 286283 by rfer(12644) About Me  on 2011-02-06 19:17:28 (Show Source):
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a^2+b^2=c^2
9+b^2=121
b^2=121-9
b^2=112
sqrt 112=10.58


percentage/405217: A Television Is On Sale At 10% off the orginial price . if the original price of the television was 450.00 , what is the sale price ?
1 solutions

Answer 286282 by rfer(12644) About Me  on 2011-02-06 19:15:37 (Show Source):


Numeric_Fractions/405218: I just had a question about how to solve this particular problem...
I need to add 7/12 + 14/15 , but I don't know how to find the lowest common denominators.
Your help would be much appreciated! (:
1 solutions

Answer 286280 by rfer(12644) About Me  on 2011-02-06 19:14:20 (Show Source):
You can put this solution on YOUR website!
some times it is easest to just multiply the two denominators for a commonj denominator
7/12+14/15
105/180+168/180=273/180
reduce
1 31/60


Mixture_Word_Problems/405214: The meat market sells lean ground beef for $2.40 per pound. How much should the meat market charge for a 1.65-pound package of lean ground beef?
1 solutions

Answer 286279 by rfer(12644) About Me  on 2011-02-06 19:10:36 (Show Source):
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2.40*1.65=3.96


Miscellaneous_Word_Problems/405226: It takes a student 30 mins to drive from school to work, a distance of 20 mil. At what average rate of speed does the student drive?
1 solutions

Answer 286278 by rfer(12644) About Me  on 2011-02-06 19:09:00 (Show Source):


Radicals/405219: Guy Wire. How long is a guy wire reaching from the top of a 9 ft pole to a point on the ground 6 feet from the pole. What is the exact length in feet?
1 solutions

Answer 286277 by rfer(12644) About Me  on 2011-02-06 19:06:13 (Show Source):
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a^2+b^2=c^2
81+36=117
sqrt 117=10.81665383 ft


decimal-numbers/405269: Write 8/9 as a decimal. Round to the nearest thousandth if necessary.
1 solutions

Answer 286275 by rfer(12644) About Me  on 2011-02-06 19:02:53 (Show Source):


Travel_Word_Problems/405120: If a 3ft stick in the ground casts a shadow of 1.2ft find the length of the shadow of a 48.4ft tree.

1 solutions

Answer 286217 by rfer(12644) About Me  on 2011-02-06 16:11:11 (Show Source):
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3/1.2=48.4/x
3x=57.6
x=19.2 ft


percentage/405102: An aunt lent her nephew $2000. The newphew agreed to pay his aunt 4% simple interest. If he promised to repay her the entire amount owed at the end of 3 years, how much money must he pay her?
1 solutions

Answer 286216 by rfer(12644) About Me  on 2011-02-06 16:08:49 (Show Source):
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I=Prt
I=2000*0.04*3
I=240
2000+240=$2,240


Travel_Word_Problems/405126: A bag of fertilizer covers 6000ft2.
How many bags are needed to cover an area of 32000ft2?
1 solutions

Answer 286214 by rfer(12644) About Me  on 2011-02-06 16:05:58 (Show Source):
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32/6=5.3
can't buy part bag so = 6 bags


Linear-equations/405136: find the slope for the pairs if it exist (4,7) (6,-10)
1 solutions

Answer 286212 by rfer(12644) About Me  on 2011-02-06 16:01:28 (Show Source):
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slope m=(-10-7)/(6-4)
m=-17/2


Linear_Equations_And_Systems_Word_Problems/405145: A farmer had some chickens and some cows. She counted 40 heads and 126 legs. How many chickens and how many cows did she have.
1 solutions

Answer 286211 by rfer(12644) About Me  on 2011-02-06 15:58:32 (Show Source):
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ch +co=40
co=40-ch
2ch+4co=126
2ch+4(40-ch)=126
2ch+160-4ch=126
-2ch=-34
ch=17 chickens
co=40-17=23 cows


test/405081: Maria weighs 124 pounds. What is her weight in kilograms

1 solutions

Answer 286195 by rfer(12644) About Me  on 2011-02-06 14:48:51 (Show Source):
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124*0.4536=56.25 kg


test/405065: Coat cost $156 this is 35% of original price. What is original price?
1 solutions

Answer 286194 by rfer(12644) About Me  on 2011-02-06 14:42:59 (Show Source):
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156/0.35=445.71


Inequalities/405027: Solve the following equation
(x+3)(3x+5)=7
1 solutions

Answer 286193 by rfer(12644) About Me  on 2011-02-06 14:41:11 (Show Source):
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3x^2+14x+8=0
zero's -4, -0.7
vertex= -2.3,-8.3)
y int=(0,8)


Mixture_Word_Problems/405043: Bob Grey invests $22,000, some at 7% and some at 6% annual interest. If he recieves an annual return of $1,420, how much should be invested at eact rate?
1 solutions

Answer 286190 by rfer(12644) About Me  on 2011-02-06 14:31:42 (Show Source):
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0.07x+0.06(22000-x)=1420
0.07x+1320-0.06x=1420
0.01x=100
x=10,000
22000-x=12,000


Coordinate-system/405056: y/6 = 12/8
1 solutions

Answer 286188 by rfer(12644) About Me  on 2011-02-06 14:28:33 (Show Source):


Equations/405067: solve equation: x/3= 3x - 2
1 solutions

Answer 286187 by rfer(12644) About Me  on 2011-02-06 14:27:25 (Show Source):
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x=3(3x-2)
x=9x-6
6=8x
x=6/8
x=3/4


testmodule/404874: if a person have 15 rupees then how we divide it into half, one-third and one-ninth plz expalin?
1 solutions

Answer 286099 by rfer(12644) About Me  on 2011-02-06 01:26:05 (Show Source):
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15*1/2=15/2=7.5
15*1/3=15/3=5
15*1/9=15/9=1.67


Probability-and-statistics/404816: . Short Answer. Of 29 college juniors at Pelican State College, 13 preferred pepperoni pizza, 11 preferred supreme, and 5 preferred cheese. If we picked a college junior at Pelican State College at random, what is the probability that he or she would prefer pepperoni? Give solution exactly in reduced fraction form.



1 solutions

Answer 286098 by rfer(12644) About Me  on 2011-02-06 01:23:35 (Show Source):


Inequalities/404834: Could I please have some help with solving this problem and also could you show me how you came up with the answer. Thank you
6+2x<2
1 solutions

Answer 286096 by rfer(12644) About Me  on 2011-02-06 01:20:11 (Show Source):
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2x < 2-6
2x < -4
x < -2


Quadratic_Equations/404846: Solve
5x^2+x=3
1 solutions

Answer 286095 by rfer(12644) About Me  on 2011-02-06 01:15:59 (Show Source):
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(-0.9,0)
(0.7,0)
vertex (-0.1,-3)


Quadratic_Equations/404847: Solve
x^2-6x=-6
1 solutions

Answer 286094 by rfer(12644) About Me  on 2011-02-06 01:09:52 (Show Source):
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(1.3,0)
(4.7,0)
vertex (3,-3)


Quadratic_Equations/404848: Solve
4x^2+13x=12
1 solutions

Answer 286093 by rfer(12644) About Me  on 2011-02-06 01:00:34 (Show Source):
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(0.8,0)
(-4,0)
vertex (1.6,-22)