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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
8
.
There are 56 marbles in total in the bag and each is equally likely to be chosen.
Work out how many red marbles there must be.

Sagot :

MathWiz0001

Step-by-step explanation:

Multiply 56 by 7/8 to determine the amount of red marbles.

*56 can be put over 1.

Multiply;

[tex] \frac{56}{1} \times \frac{7}{8} = \frac{392}{8} [/tex]

Simplify by dividing by 8;

[tex] \frac{392 \div 8}{8 \div 8} = \frac{49}{1} [/tex]

There are 49 red marbles.

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