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Question 1117569: if the coefficient of x^8, x^9 and x^10 in the expansion of (1+x)^n are in arithmetic progression, find the values of n where n is a positive integer
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Question 1117580: Draw a right angled triangle and state pythagoras rule giving relationship between the sides of this triangle.
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Question 1117568: find the term independent of x in the expansion of {2x^3 - 1/4(x^5)}^8
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Question 1117568: find the term independent of x in the expansion of {2x^3 - 1/4(x^5)}^8
Click here to see answer by ikleyn(52781)

Question 1117579: Write perimeter and area of rectangle and triangle,stating what the pronumerals stand for
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Question 1117576: 4x+4y=5,8y-6x=3
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Question 1117578: X/2+y/3=5,x-y=10
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Question 1117577: 4x-y=12,2y-8x=-24
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Question 1117577: 4x-y=12,2y-8x=-24
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Question 1117615: Caylee deposit 14,000 into a savings account that earns 8% simple interest how much money will be in her account after five years
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Question 1117667: Marcus is building a scale model of a skyscraper using the ratio 2:225. If the width of the skyscraper is 405 ft, what is the width of the model?

A.2.5ft
B.9.0ft
C.3.6ft
D.11.3ft
Click here to see answer by josgarithmetic(39617)

Question 1117714: Obtain an equivalent system by performing the stated elementary operation on the system. Replace the first equation by the sum of itself and 3 times the second
equation.
-7x -10y -14z= -35
6x -9y +3z= -24
5x +7y +8z= -20
Click here to see answer by josgarithmetic(39617)

Question 1117716: Solve the system by back substitution.
2x+4y+z+3w=1
y+6z+2w=8
z+w= 2
2w= 6

The solution set is: _, _, _, _
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Question 1117718: Use row operations to solve the system.
x+y-z=4
3x-y+z=-12
x-4y+2z=-52
The system has exactly one solution. The solution is:_,_,_
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Question 1117726: Solve the system by back substitution:
4x+8y+2z+6w= -5
-y-6z-2w= -8
-3z-3w= -6
-5w= -15
The set solution is: _,_,_,_
Click here to see answer by solver91311(24713)

Question 1117728: Solve the following system of equations using the Gauss-Jordan method.
-15x-2y+z= -54
20x+y (blank)= 78
-10x-2y+z= -34
Click here to see answer by Alan3354(69443)

Question 1117732: ANTIDIFFERENTATION. The volume of water tank is V in cubic meters when the depth of the water is h meters. If the rate of change of V with respect to h is pi(4h^2 +12h+9), find the volume of the tank when the depth is 3 meters.Please help. Thankyou.
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Question 1117765: How much interest is earned on $1500 at 10% p.a. for 7 years, compounded every 6 months
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Question 1117783: Solve the following pairs of simultaneous equations. (a) 4x+4y=5, 8y-6x=3 (b) 4x-y =12,2y-8x=-24 (c) x/2+y/3 =5,x-y =10
Click here to see answer by josgarithmetic(39617)

Question 1117784: A is the point (9,-2) and B is the point (3,6). M is the mid point of AB.Find the coordinate of M
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Question 1117786: Write perimeter and area of (a) rectangle (b) triangle,stating clearly what the pronumerals stand for.
Click here to see answer by Alan3354(69443)

Question 1117785: P,Q and M are three points such that M is the middle point of PQ.The coordinates of P and M are (2,4) and (0,-3) respectively.Find the coordinates of Q.
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Question 1117632: expand (1+2x)(1-x)^6 as far as the term in x^4 and use it to evaluate 1.06*(0.97)^6. correct to 4 decimal places.
find the value of R in the coefficient of the Rth term from beginning and the Rth term from the end of the expansion of (3x+5)^15 are in the ratio of 27:125
Click here to see answer by greenestamps(13200)

Question 1117831: Hello! I can't solve this problem. I feel like there's something missing here, but maybe I just really don't know how to solve this. Here's it:
After receiving a 20% discount, John paid P180 for an item. What is the regular price of the item?
Thank you in advance!
Click here to see answer by josmiceli(19441)

Question 1117833: Hello! The problem that I'd be putting was already solved by me, but I just really want to make sure if the process I did is right. Please, tell me if this solving is right. Thank you in advance! :D
What is the percentage commission if a salesman gets P750 from a total sales of P10,000?
Commission (C) = Rate (R) x Total Sales
750 = (x) (10,000)
750 = 10,000x
750/10,000 = 10,000x/10,000
0.075 = x
Then, I changed the decimal answer to percent. -> 7.5%
Trial and error: 10,000 x 7.5% = P750
Is this correct? Thank you! :)
Click here to see answer by stanbon(75887)

Question 1117832: Hi! Hoping you could help me solve this one. Thank you in advance! :)
An agent receives a weekly salary of P3,200 plus 15% of his total sales. If for a given week he got P5,450, how much was his total sales?
This is the formula I found in my book (although I have it, I still don't know how to solve it):
Commisson (C) = Rate (R) x Total Sales
Thank you! :)
Click here to see answer by stanbon(75887)

Question 1117851: The revenue function R(x) and the cost function C(x) for a particular product are given. These functions are valid only for the specified range of values. Find the number of units that must be produced to break even.
R(x)= 200x-x^2; C(x)=15x+6750
Click here to see answer by Theo(13342)

Question 1117935: Three numbers are in arithmetic progression,their sum is15and their product is 80.Determine the numbers
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Question 1117939: jerry has 12 donkeys. he sell five. how much does he have now?
Click here to see answer by Alan3354(69443)

Question 1117362: Robert is planning to buy a property worth $580,000. He is required to pay a 35% deposit and then borrow the rest at a flat interest rate of 6.90% pa. If Robert calculated that he could only repay $2870 monthly, in how many years will Robert be free of his debt?
Click here to see answer by Theo(13342)

Question 1117954: Hi i need help solving this equation
109.30= 10/1+i + 110/(1+i)^2
What is the value of i?
Click here to see answer by josgarithmetic(39617)

Question 1118052: Hi i need help solving this equation
109.30= 10/(1+i)+110/(1+i)^2
i= 0.05 but how do we get to the i value? Can you please show step by step method. Thank you.
Click here to see answer by solver91311(24713)

Question 1118065: scott is four times older than beth. In six years from now scott will only be three times older than beth. solve the equation to find out how old each of them is now
Click here to see answer by math_helper(2461)

Question 1118092: I need help in solving this equation.
4P+(1-P)(5.78)= 5
P= 0.438 but i cannot workout how to arrive at that value. Can you please show step by step method of how to arrive at the P value. Thank you.
Click here to see answer by ikleyn(52781)

Question 1118089: https://vle.mathswatch.co.uk/images/questions/question16415.png
please help
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Question 1118098: Rewrite the quadratic equation y=2x^2+10x+9 into standard form to determine the vertex.
enter answers separated by commas.
____ ______ ____
vertex, up or down taller or shorter than y=x^2
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Question 1118102: The sum of the first ten terms of a linear sequence is -60 and the sum of the first fifteen terms of the sequence
is -165. Find the 18th term of the sequence.
Click here to see answer by stanbon(75887)

Question 1118101: Find The sum of the first eight term of a linear sequence whose first term is 60 and whose last term is 46

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Question 1118101: Find The sum of the first eight term of a linear sequence whose first term is 60 and whose last term is 46

Click here to see answer by greenestamps(13200)

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