Question 79317
Let W = the price of walnuts per pound.
Let A = the price of Almonds per pound.
From the problem description, you can write:
1) {{{3W+6A = 51}}} and 
2) {{{5W+4A = 55}}}
To solve this sytem of equations by elimination, multiply equation 1) by 5 and equation 2) by 3.
1a) {{{5(3W+6A) = 5(51)}}}
2a) {{{3(5W+4A) = 3(55)}}}
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1a) {{{15W+30A = 255}}}
2a) {{{15W+12A = 165}}} Subtract equation 2a) from equation 1a)
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3) {{{18A = 90}}}  Divide both sides by 18.
{{{A = 5}}}
The price of almonds is $5.00 per pound.