There is a bag with only red marbles and blue marbles. The probability of randomly choosing a red marble is 1/8. There are 56 ma
rbles in the bag and each is equally likely to be chosen. Work out how many red marbles there must be
1 answer:
Answer:
7 red marbles
Step-by-step explanation:
P( red) = red marbles / total marbles = 1/8
We know there are 56 marbles
red marbles/56 = 1/8
Multiply by 56
red marbles = 1/8 *56 = 7
There are 7 red marbles
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The answer to this is log14 4
Answer:
a = 4/27 - b/81
Step-by-step explanation:
27a + 1/3 * b = 4
Subtract the term with b from both sides.
27a = 4 - 1/3 *b
Divide both sides by 27.
a = 4/27 - 1/81 * b
a = 4/27 - b/81
10%
= 10/100
= 1/10
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Hope this helps!
(If your confused, I just put this in a calculator)
