Asked by Chris

How do i solve this system algebraicly?
3x + 8y = 16
5x + 10y = 25
Answered by bobpursley
multipy the top equation by 5, the bottom by 4.

15x+40y=80
20x+40y=100

subtract the top equation frm the bottom

5x=20
go from there to solve for x, then y.
Answered by Chris
when i fill in 3(5)+ 8y = 16 it doesnt comeout even though
Answered by Anonymous
The Nutty Shoppe has 10 kg of mixed pecans and cashews which sell for $8.40 per kilogram. Cashews alone sell for $8 per kilogram, and pecans sell for $9 per kilogram. How many kilograms of cashews are there in the mix?
Answered by jackie
C= cashews
mixture sells 10x 8.40=$84
8c+9(10-c)
90-c=84
C=6
there are 6 kg of cashews in the mix
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