Seudónimo Seudónimo
  • 04-06-2019
  • Mathematics
contestada

Please answer this multiple choice question CORRECTLY for 30 points and brainliest!!

Please answer this multiple choice question CORRECTLY for 30 points and brainliest class=

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 17-06-2019

Answer:

C. 6 kg

Step-by-step explanation:

Let m represent the mass of plates on one side of the barbell. Then the total weight of the barbell is ...

2m +24 = 60 . . . . . kilograms

m +12 = 30 . . . . . . . divide by 2

m = 18 . . . . . . . . . . . subtract 12

The mass of plates on one side of the barbell must total 18 kg. If they all have the same mass, then that must be a divisor of 18. In whole numbers, that would include plates of mass 1, 2, 3, 6, 9, 18 kg.

The only one of these on your list of answer choices is ...

6 kg

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