Class 6.3: More algebraic word problems - PCC

eFf`g h^i]j klnm o]kqpLj lnr s)ti]j uwvLj i]pLm k`xzy {b|
bFcad
|§ €D3c`‚aƒ>„ …n†n‡ „„ ˆ ‚ad ‡ 3ˆ d ˆ ‰ Š5a‹VcFŒa`ŽTc`‚ad ‡ †n‡ ad ‡ „'Š a …qd ‡ `‚Š en`…n †ˆ¢c`nnˆ >d } g)„ …n†n‡ „
}a~
„ ˆ ‚ad ‡ 3ˆ d ˆ ‰ Š§ ‹c3fagqŽHca‚`d ‡ †n‡ d ‡ „5Š a …qd ‡ `‚)‡ ‚F`‰ nˆ ‰d ‘`ˆ d5c’`g`ŽHca‚`d ‡ †n‡ d ‡ „5Š a …qd ‡ `‚]“
~ |§ €D¢…n„ e”n…n‰ ˆ¢c`„ ‡ Š ena…n †]ˆ¢3‡ •nˆ F€§‡ d eŒ3‘ac` a‚nŠa‹c)–agqŽHca„ ‡ Š a …qd ‡ `‚F‡ ‚F`‰ nˆ ‰d
Œ
d§c)— gqŽCc`„ ‡ FŠ ` …qd ‡ a‚]“ ‘aˆ
~ |5 €^…n„ ea‹ca‚c` ƒ)d enc d5‡ Š5Œag`ŽT„ `”n”]ˆ ‰§Š en`…n †]ˆ¢3‡ •qˆ F€§‡ d e>Œ g`g3a…n‚n„ ˆ Š5a‹ca‚c` ƒ
’
enc d§‡ Š§ag`ŽH„ a”n”ˆ ‰§‡ ‚Fa‰ nˆ ‰Vd 3‘aˆ d§ca‚ca ƒ3d encad§‡ Š’agqŽH„ `”n”]ˆ ‰ “
d
~*˜^ ˆ d3”n ca‚nˆ3d ‰ c š`ˆ ‡ ‚n‘cad3agag>3”ne› š`ˆ ‰ d c`œaˆ Š3c>”n‰ `”]ˆ ˆ ‰¢”n c`‚nˆ3d ‰ c š`ˆ ‡ ‚n‘>c d)Œ g`g>3”ne
–
enc d'enca>cFŒ ena…n‰5enˆ c`>Š d ca‰ d ~ |5 €^‹ ca‰§‹ ‰ aTd enˆ¢Š d c`‰ d ‡ ‚n‘)”]`‡ ‚ad5c`‰ ˆ'd enˆ¢”n c`‚nˆ Š§€§enˆ ‚>d enˆ ˆ d
d
š`ˆ ‰ d c`œaˆ Š§d enˆ'”n‰ a”ˆ ˆ ‰V”n c`‚nˆ “