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2 years ago

in your math class there are 2 Boys for every 3 girl.which of the following be the ratio of Boys and girl in the class?

Mathematics

2 answers:

Diano4ka-milaya [45]2 years ago

8 0

Answer:

B. 14/21

Step-by-step explanation:

They are multiplied by 7 because,

BOYS : 2x7=14

GIRLS : 3x7=21

4vir4ik [10]2 years ago

4 0

Answer:

B. 14/21

Step-by-step explanation:

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What's -2x-8y=12 in y intercept form

Free_Kalibri [48]

Y=2/-8x-1.5 ( pretty much add 2x to both sides, then divide all parts by negative 8. So it'd be 2 over -8 and then 12 divided by -8 which equals -1.5)

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3 years ago

Find the probability of getting four consecutive aces when four cards are drawn without replacement from a standard deck of 52 p

posledela

Answer:

P=0.0000037

P=0.00037%

Step-by-step explanation:

Probability

A standard deck of 52 playing cards has 4 aces.

The probability of getting one of those aces is

$\displaystyle \frac{4}{52}=\frac{1}{13}$

Now we got an ace, there are 3 more aces out of 51 cards.

The probability of getting one of those aces is

$\displaystyle \frac{3}{51}=\frac{1}{17}$

Now we have 2 aces out of 50 cards.

The probability of getting one of those aces is

$\displaystyle \frac{2}{50}=\frac{1}{25}$

Finally, the probability of getting the remaining ace out of the 49 cards is:

$\displaystyle \frac{1}{49}$

The probability of getting the four consecutive aces is the product of the above-calculated probabilities:

$\displaystyle P= \frac{1}{13}\cdot\frac{1}{17}\cdot\frac{1}{27}\cdot\frac{1}{49}$

$\displaystyle P= \frac{1}{270,725}$

P=0.0000037

P=0.00037%

3 0

2 years ago

Which of these problem types can not be solved using the Law of Sines?

andrezito [222]

I think the answer is B!

Hope this helps

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3 years ago

By what percent did the price change, if… a the price was $100 and now it is $250?

elena-s [515]

It had a 150% increase in price

100* 1.5 = 150
150+100 = 250

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3 years ago

Read 2 more answers

X/(x-2) + (x-1)/(x+1) = -1 How to solve?

kirill115 [55]

Multiply entire equation by (x-2)(x+1) to get rid of the denominators That would lead to X(x+1)+(x-1)(x-2)=-1(x-2)(x+1)
Finally, using distributive property and foil, you would get x^2+x+x^2-3x+2=(-x^2+x+2).2x^2-2x+2=-x^2+x+23x^2-3x=0
3x(x-1)x=0 and x=1

7 0

3 years ago

in your math class there are 2 Boys for every 3 girl.which of the following be the ratio of Boys and girl in the class?​

in your math class there are 2 Boys for every 3 girl.which of the following be the ratio of Boys and girl in the class?