math SC paper 2000 (1 Viewer)

[supre]

hi everyone
i was doing math SC paper for the year 2000. i have completed the paper except i need help with two questions. can someone please solve these 2 questions Q35 and Q47 with working out.
thanks in advance:wave:
http://www.boardofstudies.nsw.edu.au/schoolcertificate/sc2000/pdf_doc/00_sc_maths.pdf

 

[FTW]

35. The triangle is isosceles which means that the two side lengths are the same, therefore the base angle must be the same. The amount of degrees in a triangle is 180. so 180-70 (the given angle) gives 110. 110/2 to find out how much each base angle is gives you 55. x is supplementary to the angle of 55 degrees (straight line angle is equal to 180 degrees) so then x = 180-55=125 (C)

47. total weight = 74x10=740. take off the weight given which is 4x80
740-320=420
420/6 = 70kg (C)

 

[supre]

thanks soo much for ur help...

 

[FTW]

no problem

 

[Riot09]

after all the question i asked help for and you answered, i cant belive that youre stuck on question 35,i just looked at it and got it,i guess my drawing skills have a place in maths after all.lol

 

[supre]

after all the question i asked help for and you answered, i cant belive that youre stuck on question 35,i just looked at it and got it,i guess my drawing skills have a place in maths after all.lol

see, u r smart after all...:uhhuh: