8.1 7 Please solve this. Thanks!

Algebra
Tutor: None Selected Time limit: 1 Day

May 3rd, 2015

suppose the X milligram of  compound one and Y milligram compound  two 

 X  *0.8 + Y *0.4 = 50                1

X *0.1 +Y 0.2   = 20                   2     

  solve this two equations  by elimination method  

equation 1 *0.1  and equation 2 *0.8 

 then subtract 

(0.04-0.16)Y = (5-16)

 Y = 91.66 mg 

put the values of Y in equation 1

 then  

X = 16.67 mg 

I hope it will be help full 

If you feel any doubt or difficulties in calculation plz let me know I will explain. 

  


 


May 3rd, 2015

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May 3rd, 2015
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