Help fast please

Question

A company mixes peanuts, cashews, and almonds to obtain 17 oz package worth 4.59 dollars. If peanuts, cashews, and almonds cost 15, 44, and 54 cents per oz respectively, and the amount of cashews is equal to the amount of almonds, how much of each is in the package?  _oz of peanuts,  _oz of cashews, and  _oz of almonds.

Answer 1

c=a

15p+44c+54a = 459

replace a with c, as c=a

15p+44c +54c = 459

15p +98c = 459

p+c+a =17

replace a with c

p+c+c=17

p+2c =17

multiply p+2c=17 by 15

15p +30c =15(17)=255

subtract 15p+30c =255 from 4th original equation above

98c-30c = 68c = 459-255= 204

c = 204/68=3

a= c = 3

p = 17-3-3 = 11

15(11) +44(3)+54(3)

=165 +132 +162

=459

11 oz peanuts +3 oz cashews + 3 oz almonds

= 17 oz mixture costing $4.59