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Money_Word_Problems/667914: After 3 months the simple interest earned annually on an investment of $7000 was $63. Find the interest rate
1 solutions

Answer 415252 by rfer(12654) About Me  on 2012-10-17 14:11:49 (Show Source):
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63=7000*r*0.25
63/1750=r
0.036=3.6%


Numeric_Fractions/667020: It says a boy divided 5/8 of dog food into 3 dishes for his dogs. What fraction of the pounds would be in each dish. I cant figure it out.Will you help?
1 solutions

Answer 414794 by rfer(12654) About Me  on 2012-10-15 23:16:25 (Show Source):
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(5/8)/(3/1)=
5/8*1/3=5/24 each


Geometry_Word_Problems/667051: Find the area of a rectangular window measuring 1/2 meter by 3/4 meter.
1 solutions

Answer 414792 by rfer(12654) About Me  on 2012-10-15 23:13:45 (Show Source):
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1/2*3/4=3/8 sq meters


Linear_Equations_And_Systems_Word_Problems/667062: A clothing store offers a 20% discount on all purchases. How much would a shopper pay (before tax) for an item originally costing $21.00 dollars?
1 solutions

Answer 414791 by rfer(12654) About Me  on 2012-10-15 23:12:02 (Show Source):
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21*0.80=$16.80


Mixture_Word_Problems/667077: How do you write 280,000,000 in word form?

1 solutions

Answer 414790 by rfer(12654) About Me  on 2012-10-15 23:10:09 (Show Source):
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Two hundred eighty million


test/666475: Karen works for $6 an hour. A total of 25% of her salary is deducted for taxes and insurance. She is trying to save $450 for a new car stereo and speakers. How many hours must she work to take home $450 if she saves all of her earnings?
1 solutions

Answer 414503 by rfer(12654) About Me  on 2012-10-15 00:16:18 (Show Source):
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450/(6*0.75)=100 hrs


Money_Word_Problems/666510: If Sylvia interest $1800 in a simple interest account and earned $84 in 8 months, what is the annual interest rate?
1 solutions

Answer 414502 by rfer(12654) About Me  on 2012-10-15 00:14:08 (Show Source):
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I=Prt
84=1800r0.6667
r=84/1200
r=0.07=7%


test/666497: Find the slope, if it exist, of the line containing the pair of points.
(-3,-2) and (-9,-8)
1 solutions

Answer 414501 by rfer(12654) About Me  on 2012-10-15 00:11:54 (Show Source):
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slope
m=(-8--2)/(-9--3)
m=-6/-6
m=1


decimal-numbers/666505: what is the cost, in dollars, of 13.4 gallon of lead-free gasoline at 112.9 cents per gallon? (112.9 cents = $1.129
1 solutions

Answer 414500 by rfer(12654) About Me  on 2012-10-15 00:10:26 (Show Source):
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13.4*1.129=$15.13


Angles/666385: Angle one is three times the measure of angle two. Angle one and angle two are supplementary
1 solutions

Answer 414421 by rfer(12654) About Me  on 2012-10-14 20:17:03 (Show Source):
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x+3x=180
4x=180
x=180/4
x=45
3x=135


Money_Word_Problems/666370: You take out a 1-year, $5,000 loan at 8% simple annual interest. The lender charges you a $250 fee. Thinking of the fee as additional interest, what is the actual annual interest rate r you will pay?

1 solutions

Answer 414420 by rfer(12654) About Me  on 2012-10-14 20:15:49 (Show Source):
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250/5000=0.05=5%
0.08+0.05=0.13=13%


Money_Word_Problems/665947: A principal of $6000 is invested in an account paying an annual rate of 4%. Find the amount in the account after 3 years if the account is compounded semiannually,quarterly and monthly?
1 solutions

Answer 414180 by rfer(12654) About Me  on 2012-10-13 20:47:01 (Show Source):
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I will do one, you do the others
A=6000(1+0.04/2)^3*2
A=6000(1.02)^6
A=6000*1.1262
A=$6757.20


Inverses/665882: I don't get how to do 3r/4-4/5=7/10. Can you help?
1 solutions

Answer 414179 by rfer(12654) About Me  on 2012-10-13 20:43:15 (Show Source):
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3r/4-4/5=7/10
3r/4=7/10+4/5
3r/4=7/10+8/10
3r/4=15/10
r=(15/10)(4)
x=60/10
x=6


Travel_Word_Problems/665944: How long will it take a bike rider to travel 750 meters if they are traveling at 5 meters per second
1 solutions

Answer 414177 by rfer(12654) About Me  on 2012-10-13 20:38:03 (Show Source):
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750/5=150 seconds
150/60=2.5 minutes


Human-and-algebraic-language/665935: If Kachina Caron invested $1800 in a simple interest account and earned $54 in 6 months, what is the annual interest rate?
1 solutions

Answer 414176 by rfer(12654) About Me  on 2012-10-13 20:36:33 (Show Source):
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I=Prt
54=1800*r*0.5
r=54/900
r=0.06=6%


Angles/665923: an angle is 16 degrees more than it's supplement. find the angle
1 solutions

Answer 414175 by rfer(12654) About Me  on 2012-10-13 20:34:42 (Show Source):
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x+x+16=180
2x=180-16
2x=164
x=164/2
x=82
x+16=98


Money_Word_Problems/665939: How much interest is earned on $52,000.00 at .30% for 3 months? Also, how much interest is earned on $52,000.00 at .40% for 3 months?
1 solutions

Answer 414174 by rfer(12654) About Me  on 2012-10-13 20:32:14 (Show Source):
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I=Prt
I=52000*0.003*.25
I=$39
-----------
I=52000*0.004*.25
I=$52


test/665809: 3x-8>10, i need the inequality
1 solutions

Answer 414101 by rfer(12654) About Me  on 2012-10-13 13:10:20 (Show Source):
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3x > 10+8
3x > 18
x > 18/3
x > 6


Miscellaneous_Word_Problems/665378: if you want to increase your income next year by $1000 how many additional hours will you need to work if you make $7 per hour?

1 solutions

Answer 413789 by rfer(12654) About Me  on 2012-10-11 21:54:16 (Show Source):
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1000/7=142.9 hrs


Signed-numbers/664977: 9-3(5-4)-6
1 solutions

Answer 413619 by rfer(12654) About Me  on 2012-10-11 13:38:56 (Show Source):


test/665013: write the slope intercept equation for (-4,-1) and (1,9)
1 solutions

Answer 413617 by rfer(12654) About Me  on 2012-10-11 13:37:19 (Show Source):
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slope
m=(9--1)/(1--4)
m=10/5
m=2
---------------
y=mx+b
9=2*1+b
9=2+b
b=4.5
----------------
y=2x+4.5


Finance/664979: Find the accumulated amount if $5,000 is invested at 8% compounded annually for 6 years

1 solutions

Answer 413615 by rfer(12654) About Me  on 2012-10-11 13:35:09 (Show Source):
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A=5000(1.08)^6
A=5000*1.5869
A=$7934.50


test/665021: At what interest rate should you invest your money if you want it to double in 6 years
1 solutions

Answer 413613 by rfer(12654) About Me  on 2012-10-11 13:30:56 (Show Source):


percentage/664771: what is the original price if there is a discount is 20% and after the discount it is 52dollars
1 solutions

Answer 413451 by rfer(12654) About Me  on 2012-10-10 22:42:10 (Show Source):


Geometry_proofs/664778: given: 2(x+5)= 8(x-7)rove x = 11
1 solutions

Answer 413450 by rfer(12654) About Me  on 2012-10-10 22:40:54 (Show Source):
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2(11+5)=8(11-7)
2*16=8*4
32=32


Numeric_Fractions/664790: (3x+6)1/3=4
1 solutions

Answer 413448 by rfer(12654) About Me  on 2012-10-10 22:39:11 (Show Source):
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x+2=4
x=4-2
x=2


Numeric_Fractions/664803: can u help me solve 12 divided by 2 2/7 x 3 3/7?
1 solutions

Answer 413447 by rfer(12654) About Me  on 2012-10-10 22:38:01 (Show Source):
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12/(16/7)(24/7)=
12*(7/16)(24/7)=
21/4*24/7=504/28=18


Age_Word_Problems/664814: Working backwards. Bob says, "I am thinking of a number. If i decrease it by 19, and then add 40, i get 48." What is Bob's number?
1 solutions

Answer 413444 by rfer(12654) About Me  on 2012-10-10 22:33:36 (Show Source):
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48-40=8
8+19=27


test/664633: 6x+12-8x=20
1 solutions

Answer 413406 by rfer(12654) About Me  on 2012-10-10 20:05:24 (Show Source):
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-2x=20-12
-2x=8
x=8/-2
x=-4


Travel_Word_Problems/664667: Sam rode his bicycle 9 and 2/5 miles per hour. If he rode for 3/4 of an hour, how many miles did he travel in simplest form?
1 solutions

Answer 413405 by rfer(12654) About Me  on 2012-10-10 20:02:16 (Show Source):
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d=rt
d=9.4*0.75
d=7.05 miles


Money_Word_Problems/664676: find the amount of total sales and total commision made? numbers of item 7, unit price 2610, Commission rate 6.5% , total sale ? commission ?
1 solutions

Answer 413403 by rfer(12654) About Me  on 2012-10-10 19:59:29 (Show Source):
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total sales
2610*7=18270
commission
18270*0.065=1187.55