Math Help plz!!! Really need help.
posted by Jolley on .
Use the Systematic Trial to solve this problem.
PeanutPecan Problem
Peanuts sell at $5/kg and pecans sell at $20/kg. Marika wants to make 30kg of a mixture of peanuts and pecans that will s ell at $10/kg/ How many kilograms of peanuts and pecans should she use?
Help plz. Plz explain how you got the answer.
Let x = kg peanuts
y = kg pecans
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equation 1. x + y = 30
equation 2. $5x + $20y =$10*30
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Solve the two equations for x and y. Post your work if you get stuck and need further assistance.
I don't get it why did you need help for that easy pesey problem?
evryone is at different stages, what is easy for you is new to others

>Let x represent the mass of peanuts
>Mass of pecans:30x
>The Value of peauts:5x
>Value of pecans:20(30x)
Equation: 5x + 20 (30x)= 10(30)
*Please note a number before the bracket means tp multiply*
5x + 600 x  20 = 300
>move + 600 to the other side of the equal sign, it becomes a negative  600.
> x20 just make it a 20x
5x  20x = 300  600
15x = 300
>So negative 15 equals negative 300
>Next divide 15x by 15 and 300 by 15
15x = 300
 
15 15
x = 20 Kg (the mass of peanuts)
> Mass of pecans: 30  x whitch is 30  20 = 10kg