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ch3 athe matics ol} Suan ce. 3.1 Vercen tag ey a Percentage weuns pov unc vec! Nn | n E come: Fs press the olfoewi vg Pev cewtages . , 4 g ag fractions in theiy simp est form ; (2) 264 @Q Ger @ sZ/ @ a2% 0 Sol. — Q) 994% = 28 = \ loo 4 > Sov = Se ce + Joo Z @) #84 = 75 = 2 Jeo Y @) o2rs= @2 _ 2 = ] 10 100 soo @. Calcula e: Q 78% WW j2S505:D ? i @_ 107 of jo aD @isH% 4} g005-D sel: ——— @ 7S Cizse) = 9374S 3-D 400 Ge (Cle) = 6 7D [Reray @) 1S0 Cleo) = YS F7.D {OD Exumyle: ee A fms annual sales vise From 5 00% fo ssoos Pyow one yor Lo dhe ye xt’ Express the «Se as percen rage he Ov aina\ J 4 sol: ie) u {2 eon The «se in os | \- \ JA | the value= 5 pevCot age: SS@00 — $9 S90 = S000 fl As a Prachioy ol eC oviaivyal = seog 3S —_—— _— { - 3.) So 60 Jo \o'h f Sa the percentage T\Se {8 al: —_ @ DY New | —_—— [Asee \ = {| a) FAM FS ee whe Salt in mvechmewtd< = —2_Cases) \OO =665 3) ra) ' The value “ investments at ‘he end) 4 oe year = ASeo — 66S SS = 3822S F-) A f Tn _a0eneval jf the percentoge mise iS C4 dhen *he new value is 3 fixvr_\ A The oriaivel value iW S mi) [t+ _c\ & Ori gives va Ue /S.F \ 4 out spinal Ya tue wheve Ce ec \ is the ecale Factor, lou x 4 Ex “The value a a good vises by (37 ‘Ma Cav l P io was wer dh S 65 million the begining the year ' Pind ds yalue at the endo the year. 1 Sal: yf = |3/ s-fFo-c )Jt ¥ joo = It i? = 1.13 10d The yalue at Ave end oy he yeay = (\+ 13. (6-5 million ) XR [os = (13) (6S willow) = 4. BUS million a Ne which Car be writen as. \O7 = I+ F# - \+* Jao joo =» the ge is F¢/ Note: (— \ The swf -\—x¥ \oo Fov ow 4 ecreage S -—~ Ex “The value oF a cov deveciatesc by A tn a _yeav u a w'[l Oo Cav, Curvy ely _ y/ Ariced al U3 606 be wergh in & Verrs | F =) Lime SF = \- v = [- 0tSz ofS f\ Sell: [ee New = (SF) (orig tual) pysce) - = _fS__» W2e@0 = GU 32 250 _— \oe ft Ex As aresulk modevnisation Prog caynume = ‘ res a Pym is alle to rechuce Ahe size 4 werk Perce py WY Y st ‘Snow emo loys 670 wov kere how many NY J r eeople Aicgh ik employ be fere y i 6 v ceshructuving 79 O A f\ so, S.Foj- xe 21-M = ¥6 \oo lou yoo N= (SF) 2 Q Sfo = 76 2.0 Q = sF¥ Cao _ FSo FE — Ex Find the single pevceudanye increase (ona cet XT Casge equ vale ut: to fi a) Sx increase of 30) Followee/ by gn_imcrease of 46% , C) an ineveage } 1o/ Rollowed! by a checrease | Gos Se % The Pived ale Gachory ts 1430 = 1.2 {om \ f- The a" cable Fackoy js [+ Yo = 1.4 100 e ne et Peat is (13) C4) - \.G2 hie. loo So She owev all cho-ge is 827 inevenge WS te veh ag 2e/, +Uo/ = Jor TI MW Nolice thal 5) The (" cale Peat ov ie \— 30 ec ont joo \ dl . tthe 2” scale dachoy tc 1- Uo — 9.6 loo he nev ePFect ts (oA)(_o6) = oh? = |l-0-5% == $8 joo > Pi We see thal, this sale tacky vepresesdt s fa] Sar decrease : ©) The i ccale Sactoy. |+lo — 1.) low ) A—rn The 2 eccobe fackey : |- So - aS loo the net effecd = (1) CoG) = aSS Te = |l—- a4S = \- Ss N \oo ee rep ve 6ea$S a Sh clecreage . 
