need help solving this equation step by step soybean meal is 18% protein, cornmeal is 9% protein how many lbs of each should be mixed together to get 360lb mixture that is 15%

- anonymous

- schrodinger

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- anonymous

"soybean meal is 18% protein" does that mean soybean meal contains 18% protein?

- anonymous

yes

- anonymous

Okay

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## More answers

- anonymous

Lets assume that we mixed x lbs of soybean and y lbs of cornmean

- anonymous

So x + y = 360 lbs

- anonymous

This is your first equation

- anonymous

18/100(x)+9/100(y)=15/100

- anonymous

18x+9y=15

- anonymous

This is your second equation

- anonymous

my mathlab says the second equation is 0.09x+0.18y=54

- anonymous

this is where i started getting confused cant figure out where they got 54

- anonymous

Excellent

- anonymous

Matlab is right

- anonymous

I missed something

- anonymous

how did they get 54

- anonymous

You see on the right hand side, I did it wrong

- anonymous

18/100(x)+9/100(y)=(15/100)x(360)

- anonymous

yeah thats y i asked about mathlab

- anonymous

18/100(x)+9/100(y)=(15/100)x(360)
=>0.18(x)+0.09(y)=54

- anonymous

Got it?

- anonymous

360(.15)=54

- anonymous

Yes

- anonymous

why any doubt?

- anonymous

wasnt sure mathlab gives answer not explanation gets confusing to me im really really bad at math

- anonymous

If you don't mind, is this problem for your kids

- anonymous

I mean is this from their assignment

- anonymous

no its for me, i go to strayer

- anonymous

Thats very good.

- anonymous

Any more problems at this time, which I can assist you with?

- anonymous

yes
complete the ordered triple
8x-y+z=32
3x+2y-3z=36
x-3y+2z=-14

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