anonymous
  • anonymous
will someone work this problem out with me solve by substitution method 4m+n=27 m-5n=54 im stuck and dont know what to do next
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
m= 54+5n put in the first eq
anonymous
  • anonymous
4(54+5n)+n=27
anonymous
  • anonymous
21n=27-216=-189 n=-9 m=54+5(-9)=54-45=9

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More answers

anonymous
  • anonymous
i was taught n=27-4m m-5(27-4m)=54 m-135+20m=54 this is where i got stuck
anonymous
  • anonymous
21m=54-135=-81 m = -81/21
anonymous
  • anonymous
ahhh....we must get the same values of m and n....i guess i have done some mistake earliear:S
anonymous
  • anonymous
oh yess got my mistake
anonymous
  • anonymous
20n=-189
anonymous
  • anonymous
can't you answer it with simultaneous equations?
amistre64
  • amistre64
21m = 54+135...
anonymous
  • anonymous
yup :)
anonymous
  • anonymous
off course we can do, but ann wanted by the substitution method
amistre64
  • amistre64
missmys; there are alot of ways to solve it :)
anonymous
  • anonymous
oh, ok :)
amistre64
  • amistre64
the trick is trying to fit thru the right hoops at the right times for tinas teacher.... hes a tyrant ;)
anonymous
  • anonymous
yes he is
anonymous
  • anonymous
XD
anonymous
  • anonymous
ty everyone
anonymous
  • anonymous
quick question why does the 20m change to 21m?
amistre64
  • amistre64
20m + m = m(20+1) = 21m
anonymous
  • anonymous
m+21m=21m
anonymous
  • anonymous
coefficients are added up
anonymous
  • anonymous
oh ok i missed that part
amistre64
  • amistre64
if you ahve 20 apples on the counter and 1 apple on the table; how many apples you got all together? :)
anonymous
  • anonymous
lol
amistre64
  • amistre64
uzma..... m+21m = 21m lol....youre funny :)
amistre64
  • amistre64
so apparently i need a letter of recomendation to go to a 4 year college...
amistre64
  • amistre64
who is sposed to writ eit?
anonymous
  • anonymous
anyone that is in a professional state, like a guidence consular or someone like that
anonymous
  • anonymous
UR MENTOR!!
anonymous
  • anonymous
or form tutor
amistre64
  • amistre64
i mentor myself lol
anonymous
  • anonymous
??? i have a mentor at school but she only mentored me once pointless really :) what about form tutor then?
amistre64
  • amistre64
whats a form tutor?
amistre64
  • amistre64
at 40...there isnt much more that i can be mentored or tutored in ;)
anonymous
  • anonymous
wait, do you go to a school? cause in our school we have our mentor and form tutor write those things
anonymous
  • anonymous
form tutor just someone to talk to whenever you need it, but we have to go everyday and its pointless if you have no problems and you do discussions and stuff
anonymous
  • anonymous
amistre64 is the tutor! or atleast for me when hes available he has never been wrong

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