Qualification > Math
IGCSE MATHS Doubts
thenewkid™:
can any1 pls help me wid may/june 2007 p4 q 3b (i)
Thanks
saleemsamer:
can some1 plz explain jun 2007 p4 q 2f and 4 c-e :)
Ghost Of Highbury:
--- Quote from: thenewkid™ on May 18, 2010, 05:02:30 pm ---can any1 pls help me wid may/june 2007 p4 q 3b (i)
Thanks
--- End quote ---
as they both are similar triangles, their respective sides are in proportion
y/y+2 = (2y-1)/(y+1)
simplify this equation to get
y^2 - 4y - 2 = 0
mdwael:
They may sound a stupid question but to me its not. Its this question in summer 2000 paper 4 page 7 c(i) part it says "explain why the point (60,280) is on the curve?" this is the first time I face this kind of question, I was hoping someone could explain it to me
By the way the MS says its "end of interval is 60, 20+40+200" ??? ???
$H00t!N& $t@r:
--- Quote from: ~VIN1094~ on May 18, 2010, 04:27:30 pm ---ok gimme 2 mins
volume of pool = 1512 m3 * 100 *100 *100
=1512000000 cm3
volume of pipe = 6870 cm3
=1512000000 cm3
-----------------
6870 cm3
=ans / 60(min) * 60(hrs) *24
=24.5473 days
=24 days 13 hrs
sorry net prob. !!
--- End quote ---
um.. i still dont get it... can u elaborate a bit more. By the way the ans in the ms is 2 days 13 hours
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