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nexus9112 [7]
3 years ago
10

A set of silverware contains 30 pieces. The set contains only spoons, forks, and knives. It contains the same number of spoons a

nd forks and twice as many spoons as knives. How many forks are there in the set?
Mathematics
2 answers:
Tema [17]3 years ago
5 0
Let the number of knife be x.
Knife = x
Spoon = 2x
forks = 2x

Total = 30
x + 2x + 2x = 30
5x = 30 
x = 6

Knife = x = 6
forks = 2x = 12
Spoon = 2x = 12

Answer: There are 12 forks.

larisa86 [58]3 years ago
5 0
S = f   (where s = number of  spoons and f = number forks)
s = 2k ( k = number of knives)
s + f + k = 30
2s + k = 30 ( because  s = f)
4k + k = 30
k = 6 
Number of forks (f) =  twice number of  knives = 2*6 = 12 Answer



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