Stats: 3,190,411 members, 7,940,568 topics. Date: Thursday, 05 September 2024 at 08:40 AM |
Nairaland Forum / Nairaland / General / Education / Nairaland Mathematics Clinic (493899 Views)
Mathematics Clinic / 2015 Cowbell Mathematics Champion, Akinkuowo Honoured By School. / Lead City University Clinic Welcomes First Ever Baby Since 10 Years Of Opening (2) (3) (4)
(1) (2) (3) ... (172) (173) (174) (175) (176) (177) (178) ... (284) (Reply) (Go Down)
Re: Nairaland Mathematics Clinic by bolaji3071(m): 9:52pm On May 01, 2015 |
Kendzyma:Tanks so much sir, |
Re: Nairaland Mathematics Clinic by bolaji3071(m): 9:58pm On May 01, 2015 |
I want to be a mathematics guru oooo. Still hoping for admission dis year . I fear gurus in d house. |
Re: Nairaland Mathematics Clinic by ugonna1054(m): 11:06am On May 02, 2015 |
bolaji3071:sire! it's nothing....... I'm still learning from d Ogas in d house..... Glad I was of help tho! |
Re: Nairaland Mathematics Clinic by toobby(m): 3:58pm On May 02, 2015 |
Two brothers invested a total sum of #5000 on a farm project.the farm yield ws sold for #15000 at the end of the season.if d profit ws shared in d ratio 2:3,whats d difference in d amount of profit received by d brothers |
Re: Nairaland Mathematics Clinic by toobby(m): 3:58pm On May 02, 2015 |
If d length of a square s increased by 20% while its width s decreased by 20% to form a rectangle,what s the ratio of the area of d rectangle to d area of the square |
Re: Nairaland Mathematics Clinic by naturalwaves: 4:59pm On May 02, 2015 |
toobby:Profit made = 15000- 5000= 10,000 naira. It is this 10,000 that was shared in the ratio 2:3. The first bro will receive 2/5 * 10000= 4000 naira. The second bro will receive 3/5* 10000= 6000 naira. Therefore the difference is 6000-4000= 2000 naira. |
Re: Nairaland Mathematics Clinic by naturalwaves: 5:23pm On May 02, 2015 |
toobby:The side of the original square be X. Original area of the square is (X)^2. A part of it is incresed by 20% to make the lenght. Therefore, the new lenght is (20/100*X ) + X= x/5 +x = 6x/5 Likewise, the new breadth is X - ( 20/100*x) since ot was decreased. Therefore , the new breadth is x/1 - x/ 5= 4x /5. Now , area if the rectangle = lenght * breadth = 6x/5 * 4x/5 = (24x^2)/ 25. Ratio of area of rectangle to square = (24x^2/25 )/ (x^2/1)= 24x^2/25 * 1/x^2=24/25. Therefore, the ratio is 24:25. |
Re: Nairaland Mathematics Clinic by Kendzyma(m): 5:26pm On May 02, 2015 |
toobby: |
Re: Nairaland Mathematics Clinic by toobby(m): 5:49pm On May 02, 2015 |
naturalwaves: Tanx bro |
Re: Nairaland Mathematics Clinic by toobby(m): 6:54pm On May 02, 2015 |
Peter's weekly wages are #20 for d first 20wks and #36 for the nxt twenty four wks.find his average weekly wage for d remainin 8 wks of d yr,if his average weekly wage for d whole yr is #30 |
Re: Nairaland Mathematics Clinic by naturalwaves: 7:21pm On May 02, 2015 |
toobby:You are welcome. Sorry for those typos,my battery was about to go off and I was at a wedding ceremony when I saw your questions. |
Re: Nairaland Mathematics Clinic by kilokeys(m): 12:40pm On May 05, 2015 |
if a space of 54m2 pays N30,000 and a space of 376m2 pays N60,000 What would 118m2 pay? @Richiez |
Re: Nairaland Mathematics Clinic by thankyouJesus(m): 12:51pm On May 05, 2015 |
toobby:his income for 20weeks = 20 x 20 = #400 the next 24 = 24 x 36 = #864 let the income for the 8weeks be x (400 + 864 + x)/52 = 30 52 is the total number of weeks x = #296. He is going to earn a total of #296 for the remaining 8weeks. I believe you can continue from here. |
Re: Nairaland Mathematics Clinic by thankyouJesus(m): 1:04pm On May 05, 2015 |
kilokeys:I am going to use Physics concept to solve this: let the unknown be x, (376-54)/(118-54) = (60,000-30,000)/(x-30,000) x is approximately N35,962 |
Re: Nairaland Mathematics Clinic by kilokeys(m): 1:57pm On May 05, 2015 |
thankyouJesus: thanks.. alot.. wow. i knew this was possible. done my home work and we arrived at the same formular 1 Like
|
Re: Nairaland Mathematics Clinic by Nubreeze: 1:04am On May 06, 2015 |
phy: Phy please e mail me. themoringashop at g mail dot com thanks |
Re: Nairaland Mathematics Clinic by benji93: 11:38am On May 06, 2015 |
thankyouJesus:you right if line that defines this distribution is a straight,but in the case where it is a curve,hmm 1 Like |
Re: Nairaland Mathematics Clinic by bolaji3071(m): 12:52pm On May 06, 2015 |
Gurus in the house am here again o. 1. Mother reduced the quantity of food bought for the family by 10% when she found out that the cost of living had Increased by 15%. Thus the fractional Increase in the family food bill is now? 2. The minimum point on the curve y=x^2-6x+5 is at 3. A man runs a distance of 9km/h for the first 4km and then 2km/h for the rest of the distance. The whole run takes him one hour. His average speed for the first 4km is 4. If 25^x-1=64(5/2)^6, then x has the value? 5. Find the area of the curved surface of a cone whose base radius is 6cm and whose height is 8cm. (take pie =22/7) |
Re: Nairaland Mathematics Clinic by thankyouJesus(m): 1:47pm On May 06, 2015 |
benji93:yeah, true talk. |
Re: Nairaland Mathematics Clinic by Kendzyma(m): 2:52pm On May 06, 2015 |
bolaji3071:bro,are you posting this questions here because you dnt no the solution or just wana see people solve it?seriously, the questions above shouldn't require you posting it here for solution,they are sec school stuffs...am sure if u attempt any of those,you will easily get the answer. |
Re: Nairaland Mathematics Clinic by shaboti: 10:52pm On May 06, 2015 |
Cole and Kanu start on a job of work which Cole could finish alone in 6 days, and Kanu in 8 days. After 2 days Kanu falls ill. How long does it take Cole to finish off the job by himself? Someone help pls, its not easy as it looks. |
Re: Nairaland Mathematics Clinic by JaFaith(m): 12:46am On May 07, 2015 |
The sum of the first nth term of geometric series is 145 and the sum of the reciprocal is 145/33.if the first term is 1,find the number of term and common ratio. 1 Like |
Re: Nairaland Mathematics Clinic by akpos4uall(m): 7:37pm On May 07, 2015 |
Lemme also drop mine. Btw, its off head assumption, but its a lil bit realistic. Assuming that the rate of outflow of water from a tank of capacity 2500 dm3 as a result of a hole at the base of the tank is directly proportional to the volume of water in it at each point in time, if it takes 10 hours for the water to drop from full capacity to 1%, find A) how long it'll take to drop to 10% B) the volume of water left after 1 hour C) the volume of water left after 9 hours In short in a tabular form, show the % of amount left for each of the first ten hours. *the solution is in the thinking* |
Re: Nairaland Mathematics Clinic by organic973: 8:03pm On May 07, 2015 |
Maths is maths go anywhere in the world it's the same. Just know the the basics and you are good to go. My perception of it. |
Re: Nairaland Mathematics Clinic by organic973: 8:11pm On May 07, 2015 |
Prove pi to be equal to 22/7 =3.142 |
Re: Nairaland Mathematics Clinic by Kendzyma(m): 9:28pm On May 07, 2015 |
akpos4uall:whats d proportionality constant? |
Re: Nairaland Mathematics Clinic by benji93: 10:13am On May 08, 2015 |
organic973:well pi is not 3.142,its 3.14259..........,ths only an approximation,and you cannot prove it if you cannot find an infinite series for cos theta, i have tried deriving the value of pi from analysing a sector of a circle and its the value is cos theta * 180/(90-theta) as theta approaches 90 degrees,in fact try it,it works especially numbers very close to 90,you are free to ask further questions |
Re: Nairaland Mathematics Clinic by benji93: 10:36am On May 08, 2015 |
akpos4uall: let rate =r and volume =v R is proportional to V R1/V1 = R2/V2 at the point where it drops to 1%,the rate is (99/100*2500)/10 rate=247.5 but the volume at that point is 2500-2475=25 when the level drops to 10% volume=(10% of 2500)=250 247.5/25=R2/250 ,R1 =2475 R1 = Volume out/ total time 2475 = 250/total time total time taken to reduce to 10% = 6.1 minutes |
Re: Nairaland Mathematics Clinic by akpos4uall(m): 10:40pm On May 08, 2015 |
Kendzyma:That's why it is a problem. Try to figure it out. benji93: Your work shows that you misinterpreted “a drop to 1%” as “a drop by 1%”. These are two different statement. Give it a try once again. |
Re: Nairaland Mathematics Clinic by benji93: 12:31am On May 09, 2015 |
akpos4uall:sorry i meant 1%, the solution even suggests that. |
Re: Nairaland Mathematics Clinic by benji93: 12:33am On May 09, 2015 |
benji93:ok,i just read the question again |
Re: Nairaland Mathematics Clinic by benji93: 8:28pm On May 09, 2015 |
benji93:i have modified it |
(1) (2) (3) ... (172) (173) (174) (175) (176) (177) (178) ... (284) (Reply)
Mastercard Foundation Scholarship, Enter Here / DIRECT ENTRY Admission. / 2016/2017 University of Ibadan Admission Thread Guide.
(Go Up)
Sections: politics (1) business autos (1) jobs (1) career education (1) romance computers phones travel sports fashion health religion celebs tv-movies music-radio literature webmasters programming techmarket Links: (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) Nairaland - Copyright © 2005 - 2024 Oluwaseun Osewa. All rights reserved. See How To Advertise. 58 |