Question

How many jars of nuts worth $4 per jar must be mixed with some nuts worth $6 per jar to get 50 jars of nuts worth $4.80 per jar? Please, show work, thanks.

Answer 1

Total prices equation 
4X+6Y=4.8(50) 

Total number of jars equation 
X+Y=50 

Y=50-X 
4X+6(50-X)=4.8(50) 
4X+300-6X=240 
-2X=240-300 
-2X=-60 
X=(-60)/(-2) 
X=30 

Y=50-X 
Y=50-30 
Y=20 

Making 30 jars of nuts worth 4 per jar
and 20 jars of nuts worth 6 per jar.
Hope this helps.