coralstoner3274 coralstoner3274

26-01-2021
Mathematics

contestada

A bag contains 120 marbles. Some are red and the rest are black. There are 19 red marbles for every black marble. How many black marbles are there?

Respuesta :

binitamalla11 binitamalla11

26-01-2021

Answer:

I guess the answer is 101 black marbles..

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alinarodriguez0518 alinarodriguez0518

26-01-2021

Answer: There are 6 black marbles

Step-by-step explanation:

120=19x+x

divide 120 by 19 which gives you 6

plug in the six

120=19(6)+6

120=120

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