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Question 1099947: simplify ab/a-b -b

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Question 1100164: Seven times the product of two numbers a and b can be written as:

7ab, 7a+7b,7 a+b or 49ab
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Question 1100182: Given a=2,b=3,c=0 Calculate 4a+2b+3c

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Question 1100213: 2/7 of 3 3/4 added 1/7 of 6 7/8 find the sum

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Question 1100677: If f(x)=1/x, show that f[a,b,c,d]=-(1/abcd)
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Question 1101007: A book contains 50 leaves.On each page there are 20 lines and in each line there are 10 words .how many words does that book contain?
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Question 1101008: The pole and tower cost shadows 2m and 7m at a particularly instant.If the height of the pole 5m ,the height of the tower is?
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Question 1101008: The pole and tower cost shadows 2m and 7m at a particularly instant.If the height of the pole 5m ,the height of the tower is?
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Question 1101010: The term that succeed 1000 in the series 13,26,39........is?
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Question 1101363: A woman travelled 3/8 of her journey by rail, 1/8 by car and walked the last 45 km. How far did she travel?
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Question 1101362: A woman travelled 3/8 of her journey by rail and walked the last 50 km. How far did she travel?
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Question 1101582: For the feasibility region shown below, find the maximum value of the equation
P=3�+2y
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Question 1101618: what is the width of a 2/3 lengths of rectangle park and the area is 3/9?
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Question 1102098: 1. Warmer air moved into the city last night, raising the temperature from a low of −7� overnight to a high of 19� this morning. What was the total increase in temperature?''.
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Question 1102303: A food stall owner bought 22kg of chicken. He fried 6over11 of them and kept the rest of the chicken in the refrigerator. How much chicken did he keep in the refrigerator?
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Question 1102398: 2�2+2�2+2-10
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Question 1102398: 2�2+2�2+2-10
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Question 1102536: A wheel made 675 revolutions at 32 and 1/8 revolutions per min. how many times did it rotate?
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Question 1102536: A wheel made 675 revolutions at 32 and 1/8 revolutions per min. how many times did it rotate?
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Question 1102536: A wheel made 675 revolutions at 32 and 1/8 revolutions per min. how many times did it rotate?
Click here to see answer by ikleyn(52776)

Question 1102574: Simplify, and write without negative exponents.

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Question 1102574: Simplify, and write without negative exponents.

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Question 1102580: Simplify, and write without negative exponents.
(x^2n-1+y^n-3) (x^n + y^n-1)
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Question 1102860: Find a fraction whose numerator is 8 and the denominator is 4 more than the numerator.
Click here to see answer by Edwin McCravy(20054)

Question 1103021: There are 3 people who work fulltime and are to work together on a project, but their total time on the project is to be equivalent to that of only one person working full-time. If one of the people is budgeted for 1/2 of his time to the project and second person for 1/3 of her time, what part of the third worker's time should be budgeted to this project?
Click here to see answer by ikleyn(52776)

Question 1103044: Out of 75 professional baseball players sampled, 19 reported that they were left-handed. Based on this, what is the point estimate of the proportion of all baseball players that are left-handed?
Please round your answer to at least three decimal places.
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Question 1103926: How to convert fractions. Need IMEDAITE help
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Question 1103926: How to convert fractions. Need IMEDAITE help
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Question 1104186: Find the sum of 1/2(4) +1/3(5) + 1/4(6) + ..... + 1/13(15)

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Question 1104186: Find the sum of 1/2(4) +1/3(5) + 1/4(6) + ..... + 1/13(15)

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Question 1104474: Perform the operation and give the answer as a fraction in lowest terms
5/12 + 5+3
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Question 1104611: 3 1/6+
8 2/9-1 1/2 worked step by step
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Question 1104680: Good afternoon, can you guys explain and write down the steps pls. Thank you
(1/8)^4/3
125^-2/3
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Question 1104742: 1. Find the product (xy) if x + y + √x+y = 20 and x-y + √ x-y =12.

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Question 1104934: Solve-
x^2-18x+45
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Question 1105137: Solve and show work, please
c/d + 2=
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Question 1105251: Adding fractions: x-4/ x-3 + 6/ x2-9
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Question 1105252: Solve fractional equation: 6/ x-3 - 5/x+1 = 7/x^2-2x-3
Click here to see answer by greenestamps(13198)

Question 1105879: 1a.) Determine the exact values, express in lowest terms whenever possible.
i.) -2/3+(-3/4)
ii.) -2/3 - (-3/4)
iii.) (-2/3)*(-3/4)
iv.) (-2/3)/(-3/4)
b.) The questions in part (a) have similarities and differences. With direct reference to the operation being performed, comment on the similarities and differences and explain how each answer is calculated.

Click here to see answer by Boreal(15235)

Question 1106471: Find the sum x+y, where x and y are positive integers and x�(x-y)=3703
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Question 1106473: There are two triples of positive integers (a,b,c and d,e,f) such that
a�+b�+c�=86 and d�+e�+f�=86. Evaluate the expression absolute value of
abc-def.
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Question 1106470: Evaluate √7/3+√7/9+√7/3+√7/9+.....
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Question 1106472: Find the Sum of the proper divisors of 62 742 241
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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