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3 years ago

Will it be acceptable to write R285 456 in south afrika EXPLAIN

Mathematics

1 answer:

Natasha2012 [34]3 years ago

7 0

Answer:

Society of the world to make this year the best ever friend a person could hope for a good friend of mine and her family is a great place to work and to be able to enjoy the world of

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Two boys and three girls are auditioning to play the piano for a school production. Two students will be chosen, one as the pian

finlep [7]

Answer:

30% is the correct answer.

Step-by-step explanation:

Total number of boys = 2

Total number of girls = 3

Total number of students = 5

To find:

Probability that the pianist will be a boy and the alternate will be a girl?

Solution:

Here we have to make 2 choices.

1st choice has to be boy (pianist) and 2nd choice has to be girl (alternate).

$\bold{\text{Required probability }= P(\text{boy as pianist first}) \times P(\text{girl as alternate})}$

Formula for probability of an event E is given as:

$P(E) = \dfrac{\text{Number of favorable cases}}{\text {Total number of cases}}$

For $P(\text{boy as pianist})$ , number of favorable cases are 2 (total number of boys).

Total number of cases = Total number of students i.e. 5

So, $P(\text{boy as pianist})$ is:

$P(\text{boy as pianist}) = \dfrac{2}{5}$

For $P(\text{girl as alternate})$ , number of favorable cases are 3 (total number of girls).

Now, one boy is already chosen as pianist so Total number of cases = Total number of students left i.e. (5 - 1) = 4

$P(\text{girl as alternate}) = \dfrac{3}{4}$

So, the required probability is:

$\text{Required probability } = \dfrac{2}{5}\times \dfrac{3}{4} = \dfrac{3}{10} = \bold{30\%}$

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3 years ago

how far would the cheetah have traveled in the first eight minutes? show how you arrived at your answer

Sav [38]

How far would the cheetah have traveled in the first eight minutes? show how you arrived at your answer

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3 years ago

How could you use a number cube to simulate a baby being born male or female?

enot [183]

Answer:

C) Rolling an even number is female and an odd number is male.

Step-by-step explanation:

because it would be an even chance for each sex (Male and female)

Hope this helps

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3 years ago

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In the first 3 days of class, Maria lost 2 pencils. If maria keeps losing pencils at the same rate for 60 days of class, how man

Lyrx [107]

Rounded to the nearest whole number, it seems as if she will lose 40 pencils at this rate.

2/3 = .66
60x.66=39.6
39.6 - 40

Hope this was helpful!

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4 years ago

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What equals 76 used 5

Snezhnost [94]

25.25 bc 76 divided by 5 because the answer will not go evenly so you have to have a decimal

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3 years ago

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Will it be acceptable to write R285 456 in south afrika EXPLAIN​

Will it be acceptable to write R285 456 in south afrika EXPLAIN