Calculated 23231

There are 80 screws in the box with a total weight of 1.24 kg. The weight of one screw weighs 400g. Screw weight calculated in grams

Correct answer:

s =  10.5 g

Step-by-step explanation:

1240 = 80s + 400

1240 = 80·s + 400

80s = 840

s = 840/80 = 10.5

s = 21/2 = 10.5

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