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Expressions-with-variables/670291: 55/(11-6)*8 1 solutions Answer 416877 by rfer(12646)   on 2012-10-22 19:08:22 (Show Source): You can put this solution on YOUR website! 55/5*8=88

Angles/670327: the angle is 40 more than its complement. what is the angle? 1 solutions Answer 416874 by rfer(12646)   on 2012-10-22 19:02:27 (Show Source): You can put this solution on YOUR website! x+x+40=90 2x=90-40 2x=50 x=25 x+40=65

Functions/670352: 3x-1=5(x-1)-2(7-2x) 1 solutions Answer 416873 by rfer(12646)   on 2012-10-22 19:00:05 (Show Source): You can put this solution on YOUR website! 3x-1=5x-5-14+4x 3x-9x=-18 -6x=-18 x=-18/-6 x=3

Sequences-and-series/670334: what number is 1/5%of 77? 1 solutions Answer 416872 by rfer(12646)   on 2012-10-22 18:57:46 (Show Source): You can put this solution on YOUR website! 77*0.002=0.154 -------------- or 77*2/1000=154/1000=77/500

Inverses/670340: 5-x-2>3 1 solutions Answer 416871 by rfer(12646)   on 2012-10-22 18:50:09 (Show Source): You can put this solution on YOUR website! 3-x > 3 -x > 0 x > 0

Numeric_Fractions/670347: 3/4 divided by N = 7/8 1 solutions Answer 416870 by rfer(12646)   on 2012-10-22 18:48:21 (Show Source): You can put this solution on YOUR website! 3/4=7/8n (3/4)/(7/8)=n 3/4*8/7=n 24/28=n 6/7=n

Average/670337: a student receives scores of 78,85,and 69 on the first 3 of 5 tests. What must the student average on the next 2 tests to achieve a total average of exactly 80? 1 solutions Answer 416869 by rfer(12646)   on 2012-10-22 18:45:57 (Show Source): You can put this solution on YOUR website! (78+85+69+2x)/5=80 2x+232=80*5 2x+232=400 2x=400-232 2x=168 x=168/2 x=84

Numbers_Word_Problems/670341: how do you write sixty-seven equals 55 increased by the product of 6 and a number? 1 solutions Answer 416868 by rfer(12646)   on 2012-10-22 18:42:09 (Show Source): You can put this solution on YOUR website! 67=55+6x

Average/670343: how many questions can you miss on 40 anwer test and still makea 85 1 solutions Answer 416866 by rfer(12646)   on 2012-10-22 18:40:31 (Show Source): You can put this solution on YOUR website! 40*0.15=6

Money_Word_Problems/669372: Mr jamison buys a washing machine that is listed at $800. It is advertised at 20% discount. The sale price is reduced another 10% if bought before the end of this week. He buys the washing machine before the end of the week. Find the total charge including a 6% sales tax and a $40 delivery charge. What is the correct way to set this problem up? 1 solutions Answer 416346 by rfer(12646)   on 2012-10-20 20:43:31 (Show Source): You can put this solution on YOUR website! 800*0.80=640 640*0.90=576 576*1.06=610.56 610.56+40=$650.56

Geometry_Word_Problems/669219: A roof of a new home is 7,299 feet squared. It needs to be covered in tar paper before shingles are applied. The tar paper costs $39.98 per roll and each roll covers 200 yards squared. How much will it costs to cover the roof in tar paper ? ( Note that you must purchase the paper by the roll, not by partial rolls). 1 solutions Answer 416296 by rfer(12646)   on 2012-10-20 18:04:52 (Show Source): You can put this solution on YOUR website! 7299/9=811 sq yds 811/200=4.055 whole rolls only 5*39.98=$199.90

Expressions-with-variables/669259: how do I solve 4(x - 30) -4x = 6(2x + 6) 1 solutions Answer 416294 by rfer(12646)   on 2012-10-20 17:58:00 (Show Source): You can put this solution on YOUR website! 4x-120-4x=12x+36 -12x=36+120 x=156/-12 x=-13

Miscellaneous_Word_Problems/669260: 2% annual interest rate compounded monthly, invest 5000 and after tenyears how much money do i have 1 solutions Answer 416293 by rfer(12646)   on 2012-10-20 17:55:52 (Show Source): You can put this solution on YOUR website! A=5000(1+0.02/12)^12*10 A=5000(1.001667)^120 A=5000(1.221248) A=$6106.24

Numbers_Word_Problems/669101: If you subtract 7 from twice a number, the result is 45. Find the number. 1 solutions Answer 416135 by rfer(12646)   on 2012-10-20 01:51:46 (Show Source): You can put this solution on YOUR website! 2x-7=45 2x=45+7 2x=52 x=52/2 x=26

Numbers_Word_Problems/669107: a man saves 15% of his monthly income.if he earns 10,500 a month how much does he save 1 solutions Answer 416114 by rfer(12646)   on 2012-10-19 23:01:05 (Show Source): You can put this solution on YOUR website! 10500*0.15=$1575.00

Coordinate-system/669139: The x-intercept of a line is –5 and the y-intercept of the line is –2. What is the equation of the line? I think it's y = -2/5x + 2? I'm not sure. 1 solutions Answer 416113 by rfer(12646)   on 2012-10-19 22:59:32 (Show Source): You can put this solution on YOUR website! The slope goes down so I think it should be. y=-2/5x-2 Plot it & check

Travel_Word_Problems/668813: Jack travels 12 miles each way on the school bus the bus average is 36 miles per hour how many minutes is Jacki on the bus eat each day 1 solutions Answer 415862 by rfer(12646)   on 2012-10-18 23:30:17 (Show Source): You can put this solution on YOUR website! 60/36=1.67 each mile 1.67*24=40 minutes

Travel_Word_Problems/668319: 56 miles per hour How many miles does it travel in 3 hours and 45 minutes? 1 solutions Answer 415447 by rfer(12646)   on 2012-10-18 00:33:40 (Show Source): You can put this solution on YOUR website! 56*3.75=210

Finance/668311: Find the accumulated amount after 9 yr if $3900 is invested at 3%/year compounded continuously. 1 solutions Answer 415446 by rfer(12646)   on 2012-10-18 00:32:47 (Show Source): You can put this solution on YOUR website! A=Pe^rt A=3900*(2.7183)^0.03*9 A=3900*(2.7183)^1.06814 A=3900*$11,348.93

Human-and-algebraic-language/668020: Three times a number is equal to the number decreased by two. what is the number? 1 solutions Answer 415301 by rfer(12646)   on 2012-10-17 16:56:21 (Show Source): You can put this solution on YOUR website! 3x=x-2 2x=-2 x=-2/2 x=-1

Numeric_Fractions/668003: Im wondering what the answer for x+3 over 8 = x over 2 is and if its open, false, idenity, or no solution. I tried multiplying the 8 on both sides first but then i got stuck on how to do the x+3 and the rest. If you have any help that would be great, thank you(: 1 solutions Answer 415294 by rfer(12646)   on 2012-10-17 16:32:34 (Show Source): You can put this solution on YOUR website! (x+3)/8=x/2 8x=2(x+3) 8x=2x+3 6x=3 x=3/6 x=1/2

Numeric_Fractions/667912: how to figure out 1/3 times(15+9) 1 solutions Answer 415254 by rfer(12646)   on 2012-10-17 14:12:46 (Show Source): You can put this solution on YOUR website! 1/3*24=24/3=8

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(12646)   on 2012-10-17 14:11:49 (Show Source): You can put this solution on YOUR website! 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(12646)   on 2012-10-15 23:16:25 (Show Source): You can put this solution on YOUR website! (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(12646)   on 2012-10-15 23:13:45 (Show Source): You can put this solution on YOUR website! 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(12646)   on 2012-10-15 23:12:02 (Show Source): You can put this solution on YOUR website! 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(12646)   on 2012-10-15 23:10:09 (Show Source): You can put this solution on YOUR website! 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(12646)   on 2012-10-15 00:16:18 (Show Source): You can put this solution on YOUR website! 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(12646)   on 2012-10-15 00:14:08 (Show Source): You can put this solution on YOUR website! 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(12646)   on 2012-10-15 00:11:54 (Show Source): You can put this solution on YOUR website! 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(12646)   on 2012-10-15 00:10:26 (Show Source): You can put this solution on YOUR website! 13.4*1.129=$15.13