FridaysWell wrote: » Me thinks your right... If you multiply out 7500 at 5% over three years you get the figure in the sum
Batchkid wrote: » If you apply common sense to your question you'll find that you can't tell at the moment seeing as you don't know how much you failed by. But anyways. It's probably just me but I thought them graphs were strange. I thought an x(cubed) function depicted a periodic curve or asymptotes? I really didn't get either, could someone tell me what the shape of the graphs were like please?
What sum of money invested at 5% per annum compound interest will amount to €8682 in 3 years? Give your answer correct to the nearest euro.
neiler987 wrote: » i wud m8 bu i didnt do ur question Q3 c(i) c is 3.78 put that in2 the equation nd use the formula x=b =- (square root) b(squared) minus 4(a)(c) all over 2(a) that right ??
Victoria. wrote: » My graph for 6 b was asymptote with x=2 undefined My other one was all over the place. Was just a last minute question that I did because I couldn't get some of the part Cs for ages so just did another q.
PARARORY wrote: » for the first principles , thats the (x+h) thing isnt it? When i did it it just came out -3. but but the h cancelled before i could make it equal to zero if that makes sense? Anyone else get this or did i do something wrong?!
cedomination wrote: » I was hoping for an A but now I'm not too sure, it was pretty hard for an ordinary level paper.
Correct Answer: 8682 (amount at the end of 3 years) (8682/105)x100 = 8268.57 (amount at the end of 2 years) (8268.57/105)x100 = 7874.83 (amount at the end of 1 year) (7874.83/105)x100 = 7499.84 (amount at the start) Correct to the nearest euro: €7500 To everybody that got €7444 for their answer, that's because you all multiplied the 8682 by 0.95 three times thinking that was taking away 5% compound interest each time.
cork*girl wrote: » If ya got 7444 instead of 7500 would ya get about 7 marks or just an attempt mark of 3?? what did people get for answers in 7 (c) ?
cedomination wrote: » That's exactly how it worked out for me, I was worried that I did something wrong so hopefully we're ok!
SirDarren wrote: » Correct Answer: 8682 (amount at the end of 3 years) (8682/105)x100 = 8268.57 (amount at the end of 2 years) (8268.57/105)x100 = 7874.83 (amount at the end of 1 year) (7874.83/105)x100 = 7499.84 (amount at the start) Correct to the nearest euro: €7500 To everybody that got €7444 for their answer, that's because you all multiplied the 8682 by 0.95 three times thinking that was taking away 5% compound interest each time. Hopefully that'll help some people out
barry181091 wrote: » Well hopefully we will get some attempt marks. I think they love giving out attempt marks for pass :P
neiler987 wrote: » thanks fridays well yeah coz i got de 3.78 from 2+(sqaure root) of 3= 3.78 so im gussin thats de value of c than jus used the formula ..guessin its only worth 5 marks tho it all adds up in de end !
FridaysWell wrote: » (i) Times were speed = 96 0 secs and 10 secs (ii) Acceleration = 20 m/s/s (I didnt put the M/s/s in will I lose marks?) (iii) -8 (sounds very wrong)
SirDarren wrote: » To everybody that got €7444 for their answer, that's because you all multiplied the 8682 by 0.95 three times thinking that was taking away 5% compound interest each time. Hopefully that'll help some people out
cork*girl wrote: » I got (i) 7 :L Hopefully I will get 3marks (ii) I got 20 aswell (iii) I got 6.. I think -8 was the number that came out in the calculator to say that it was negitve when you use 6. Not sure, fingers crossed. I beg you God! Please let me pass maths !!
doc_17 wrote: » Did anyone do c (i) like this? 1.05 x 1.05 x 1.05 = 1.1576 8682/1.11576 = 7500
MariaBabii wrote: » I got : (i) 10sec (ii) 20m/s (iii) I just said 8secs? becomes it says become negative, so i doubt that its a negative answer ... Just a thought!
