ILL MARK BRAINIEST IF YOU CAN DO THIS RIGHT!!!

Answer:
Step-by-step explanation:
p, c, a are the ounces of peanuts, cashews, and almonds, respectively.
“There are three times as many ounces of peanuts as of cashews.”
p = 3c
“There are five more ounces of almonds than cashews.”
a = c+5
“The total weight is 20 ounces”
p + c + a = 20
Substitution
(3c) + c + (c+5) = 20
c = 3
p = 3c = 9
Nine ounces of peanuts.