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01-07-2021
Mathematics

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There is a bag with only red marbles and blue marbles.
The probability of randomly choosing a red marble is
7/10th

There are 42 red marbles in the bag and each is equally likely to be chosen.
Work out how many marbles in total there must be.

Respuesta :

rococo908 rococo908

01-07-2021

Answer:

60 marbles in total

Step-by-step explanation:

Find how many marbles there are in total by dividing 42 by 0.7:

42/0.7

= 60

So, there are 60 marbles in total

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