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2 years ago

Someone helppp please??

Mathematics

1 answer:

Radda [10]2 years ago

3 0

Answer:

5.52

Hope this helped!

Step-by-step explanation:

Let c = cost of a spoon

3c = cost of knife

9c + 12(3c) = 82.80

9c + 36c = 82.80

c = 82.80/45

= 1.84

cost of 1 knife = 1.84 x 3

= $5.52 check

9*1.84 + 12*5.52 = 82.80

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