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Question 512190: Simplify this expression: 3/12+4/3

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Question 512201: A pile of sand is in a roughly conical pile. The slant edge of the pile is 6.0 m.
a). What is the height of the pile when the volume of sand in it is at a maximum?
b). A truck operator contracted to shift the sand wants to know how many cubic metres there are. What answer should he be given? Justify your answer with reference to the situation described?

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Question 512497: Find the sum of 17 and 4 squared
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Question 512595: If a child was born exactly k years ago, how old was the child m years ago?
Answer
a. m + k
b. k - m
c. -m
d. m - k
e. m
-------------------------
If 2a + 4b = √k, then (a + 2b)√k = ?
Answer
a. 3k
b. k/2
c. 2k
d. k
e. k/4
-------------------------------
What is the greatest two-digit integer that has a factor of 7?

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Question 512592: What is the sum of 10 consecutive odd integers if the median of these integers is 40?
---------------------
If a is three more than 1/3 of b, then what is b in terms of a?
Answer
a. 3(a - 3)
b. 3(a + 3)
c. 3a - 3
d. a - 9
e. a - 3
------------------------------------
If it takes 10 people 18 hours to do a certain job, how many hours would it take 15 people, working at the same rate, to do 2/3 of the same job?
Answer
a. 9
b. 10
c. 12
d. 8
e. 6

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Question 512687: (x)(x)(x3)
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Question 512733: 3+2x=4+2x
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Question 512795: a boat traveled 36 milea up a river in 3 hours returning downstream the boat took 2 hours. What is the boat's rate in still water and what is the rate of the river's current?
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Question 512808: What is (-7)+6+[-(2-3)]
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Question 512950: Four number are in the ratio 2:4:5:7 the sum of the first two numbers is 12 more than the difference between the fourth and third numbers find the numbers
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Question 512954: Find three consecutive even integers suck that the sum of twice the third integer and the integer is 12 less than 4 times the first integer
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Question 512953: The of three integers is 22 the second integer is 3 more than the first integer and the third integer is one less than twice the first integer find the integers
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Question 513094: Solve the equations.
3t(t+5)-t2=2t2+4t-1

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Question 513064: Use the difference of squares along with factoring by grouping.
p4 - 10p2 + 25 - t4

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Question 513189: U is jointly proportional to V and W. Let k be the constant proportionality. If U = 5 when V = 4 and W = 4, find the value of k.
Click here to see answer by solver91311(24713) About Me 

Question 513281: Hi Can you help me solve this problem?
6.ln MBC, BDis a median. lf AD =3x+2 and
MC = 58. find the value of x.
Thanks so much.

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Question 513293: 2 2/3
4 1/4
5 17/20

It's addition

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Question 513342: I need help figuring this problem out 1/2b=1280
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Question 513668: How do you solve: x^2+4x=10
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Question 513648: karl is buying a new car. At bank A, a car loan will cost him 11.5%. At bank B, it will cost 12.25%. If he borrows $8,000, how much will he save if he borrows from bank A?
Click here to see answer by Maths68(1474) About Me 

Question 513487: Solve for the indicated variable.
Area of a rectangle
Solve for w: A=lw

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Question 513747: 2/7(y-2)-17/7=-3
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Question 513842: (5n+2)(n-3)
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Question 513916: X-4y=4
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Question 514202: -5x+4(-5+x)
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Question 514510: Applications of proportions.
Gus works twice as fast as sid. Together they can dig a garden in 4 hr. How long would it takes each person working alone.

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Question 514703: 3(3x+5)=96
can u help us with this?

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Question 514705: Slope-intercept form of x + 4y - 4 = 0
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Question 514797: -4x+y=-4
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Question 514825: solve system if equations by elimination. please give me 2 examples
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Question 514963: John invested one amount at 10% and $100 less than the first amount at 12%. If the total amount of interest is $605.10 annually, how much money is in each account?
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Question 515208: If Sam can do the job in 6 days.. carla can do it in 4 days... John can do it in 2 days. How many days do they need .. if they do it together..
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Question 515208: If Sam can do the job in 6 days.. carla can do it in 4 days... John can do it in 2 days. How many days do they need .. if they do it together..
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Question 515199:
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Question 515302: If ad, and a,b,c, and d are all greater than 0, which expression is always true?
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Question 515477: Can you please show me the most simple steps to solve y=x+2 y=x^
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Question 515381: Suppose a radioactive isotope is such that five-sixths of the atoms in a sample decay after nine days. Find the half-life of this isotope.
Round your answer to 2 decimal places.
______ days.

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Question 515666: 5, 5, 2 target answer 35 and
10, 8, 6 target answer 140.
What is the formula?

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Question 515656: What are recipcicles and how/when/why are they used?
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Question 516225: 35x+7y=32
-5x=y+20

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Question 516023: Can you find three consecutive natural numbers none of
which is divisible by 3? Explain your answer.

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Question 516388: What number is 62% of 25
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Question 516503: Help
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Question 516755: Y=1/3x-4
Slope of a line parallel to each line?

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Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380, 7381..7425, 7426..7470, 7471..7515, 7516..7560, 7561..7605, 7606..7650, 7651..7695, 7696..7740, 7741..7785, 7786..7830, 7831..7875, 7876..7920, 7921..7965, 7966..8010, 8011..8055, 8056..8100, 8101..8145, 8146..8190, 8191..8235, 8236..8280, 8281..8325, 8326..8370, 8371..8415, 8416..8460, 8461..8505, 8506..8550, 8551..8595, 8596..8640, 8641..8685, 8686..8730, 8731..8775, 8776..8820, 8821..8865, 8866..8910, 8911..8955, 8956..9000, 9001..9045, 9046..9090, 9091..9135, 9136..9180, 9181..9225, 9226..9270, 9271..9315, 9316..9360, 9361..9405, 9406..9450, 9451..9495, 9496..9540, 9541..9585, 9586..9630, 9631..9675, 9676..9720, 9721..9765, 9766..9810, 9811..9855, 9856..9900, 9901..9945, 9946..9990, 9991..10035, 10036..10080, 10081..10125, 10126..10170, 10171..10215, 10216..10260, 10261..10305, 10306..10350, 10351..10395, 10396..10440, 10441..10485, 10486..10530, 10531..10575, 10576..10620, 10621..10665, 10666..10710, 10711..10755, 10756..10800, 10801..10845, 10846..10890, 10891..10935, 10936..10980, 10981..11025, 11026..11070, 11071..11115, 11116..11160, 11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790, 11791..11835, 11836..11880, 11881..11925, 11926..11970, 11971..12015, 12016..12060, 12061..12105, 12106..12150, 12151..12195, 12196..12240, 12241..12285, 12286..12330, 12331..12375, 12376..12420, 12421..12465, 12466..12510, 12511..12555, 12556..12600, 12601..12645, 12646..12690, 12691..12735, 12736..12780, 12781..12825, 12826..12870, 12871..12915, 12916..12960, 12961..13005, 13006..13050, 13051..13095, 13096..13140, 13141..13185, 13186..13230, 13231..13275, 13276..13320, 13321..13365, 13366..13410, 13411..13455, 13456..13500, 13501..13545, 13546..13590, 13591..13635, 13636..13680, 13681..13725, 13726..13770, 13771..13815, 13816..13860, 13861..13905, 13906..13950, 13951..13995, 13996..14040, 14041..14085, 14086..14130, 14131..14175, 14176..14220, 14221..14265, 14266..14310, 14311..14355, 14356..14400, 14401..14445, 14446..14490, 14491..14535, 14536..14580, 14581..14625, 14626..14670, 14671..14715, 14716..14760, 14761..14805, 14806..14850, 14851..14895, 14896..14940, 14941..14985, 14986..15030, 15031..15075, 15076..15120, 15121..15165, 15166..15210, 15211..15255, 15256..15300, 15301..15345, 15346..15390, 15391..15435, 15436..15480, 15481..15525, 15526..15570, 15571..15615, 15616..15660, 15661..15705, 15706..15750, 15751..15795, 15796..15840, 15841..15885, 15886..15930, 15931..15975, 15976..16020, 16021..16065, 16066..16110, 16111..16155, 16156..16200, 16201..16245, 16246..16290, 16291..16335, 16336..16380, 16381..16425, 16426..16470, 16471..16515, 16516..16560, 16561..16605, 16606..16650, 16651..16695, 16696..16740, 16741..16785, 16786..16830, 16831..16875, 16876..16920, 16921..16965, 16966..17010, 17011..17055, 17056..17100, 17101..17145, 17146..17190, 17191..17235, 17236..17280, 17281..17325, 17326..17370, 17371..17415, 17416..17460, 17461..17505, 17506..17550, 17551..17595, 17596..17640, 17641..17685, 17686..17730, 17731..17775, 17776..17820, 17821..17865, 17866..17910, 17911..17955, 17956..18000, 18001..18045, 18046..18090, 18091..18135, 18136..18180, 18181..18225, 18226..18270, 18271..18315, 18316..18360, 18361..18405, 18406..18450, 18451..18495, 18496..18540, 18541..18585, 18586..18630, 18631..18675, 18676..18720, 18721..18765, 18766..18810, 18811..18855, 18856..18900, 18901..18945, 18946..18990, 18991..19035, 19036..19080, 19081..19125, 19126..19170, 19171..19215, 19216..19260, 19261..19305, 19306..19350, 19351..19395, 19396..19440, 19441..19485, 19486..19530, 19531..19575, 19576..19620, 19621..19665, 19666..19710, 19711..19755, 19756..19800, 19801..19845, 19846..19890, 19891..19935, 19936..19980, 19981..20025, 20026..20070, 20071..20115, 20116..20160, 20161..20205, 20206..20250, 20251..20295, 20296..20340, 20341..20385, 20386..20430, 20431..20475, 20476..20520, 20521..20565, 20566..20610, 20611..20655, 20656..20700, 20701..20745, 20746..20790, 20791..20835, 20836..20880, 20881..20925, 20926..20970, 20971..21015, 21016..21060, 21061..21105, 21106..21150, 21151..21195, 21196..21240, 21241..21285, 21286..21330, 21331..21375, 21376..21420, 21421..21465, 21466..21510, 21511..21555, 21556..21600, 21601..21645, 21646..21690, 21691..21735, 21736..21780, 21781..21825, 21826..21870, 21871..21915, 21916..21960, 21961..22005, 22006..22050, 22051..22095, 22096..22140, 22141..22185, 22186..22230, 22231..22275, 22276..22320, 22321..22365, 22366..22410, 22411..22455, 22456..22500, 22501..22545, 22546..22590, 22591..22635, 22636..22680, 22681..22725, 22726..22770, 22771..22815, 22816..22860, 22861..22905, 22906..22950, 22951..22995, 22996..23040, 23041..23085, 23086..23130, 23131..23175, 23176..23220, 23221..23265, 23266..23310, 23311..23355, 23356..23400, 23401..23445, 23446..23490, 23491..23535, 23536..23580, 23581..23625, 23626..23670, 23671..23715, 23716..23760, 23761..23805, 23806..23850, 23851..23895, 23896..23940, 23941..23985, 23986..24030, 24031..24075, 24076..24120, 24121..24165, 24166..24210, 24211..24255, 24256..24300, 24301..24345, 24346..24390, 24391..24435, 24436..24480, 24481..24525, 24526..24570, 24571..24615, 24616..24660, 24661..24705, 24706..24750, 24751..24795, 24796..24840, 24841..24885, 24886..24930, 24931..24975, 24976..25020, 25021..25065, 25066..25110, 25111..25155, 25156..25200, 25201..25245, 25246..25290, 25291..25335, 25336..25380, 25381..25425, 25426..25470, 25471..25515, 25516..25560, 25561..25605, 25606..25650