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3 years ago

HELP I NEWD ANSWERS

Mathematics

1 answer:

vovangra [49]3 years ago

8 0

All you have to do is length times with trust me

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A person draws a card from a hat. Each card is one color with the following probabilities of being drawn: 1/10 for red, 1/5 for

Kay [80]

Answer:

$\dfrac{1}{4}$

Step-by-step explanation:

We are given that a card is drawn from a hat.

Probability that a red card is drawn, P(red) = $\frac{1}{10}$

Probability that a blue card is drawn, P(blue) = $\frac{1}{5}$

Probability that a black card is drawn, P(black) = $\frac{1}{20}$

Probability that a pink card is drawn, P(pink) = $\frac{1}{5}$

All these events are mutually exclusive i.e. they do not have anything in common.

For any two events A and B which are mutually exclusive, with probability P(A) and P(B), the probability that any one of the two events occur:

$P(A\cup B) = P(A) + P(B)$

Here event A can be thought of as drawing a blue card and

event B can be thought of as drawing a black card

So, P(blue or black) = P(blue) + P(black)

$\Rightarrow \dfrac{1}{5}+\dfrac{1}{20}\\\Rightarrow \dfrac{4+1}{20}\\\Rightarrow \dfrac{5}{20}\\\Rightarrow \dfrac{1}{4}$

So, the probability that a blue or black card is drawn from the hat:

$\dfrac{1}{4}$

8 0

3 years ago

How many times does 2 go into 80

never [62]

2 goes into 80 40 times

4 0

3 years ago

Read 2 more answers

How to convert 2 and 4/5 into an improper fraction

zvonat [6]

Answer:

Step-by-step explanation:

2 = 4/2 . 4/5 can not be a improper fraction

4 0

2 years ago

Need help adding these<br><br> √54 + √24

Gennadij [26K]

Answer:

12.247 Hope I helped

Step-by-step explanation:

$\sqrt{54}+\sqrt{24} \\7.348+4.899\\12.247$

8 0

4 years ago

Read 2 more answers

21 22 23 24 25 Won has a container with the shape below. A rectangular prism with length of 18 centimeters, width of 10 centimet

dalvyx [7]

Answer:

2nd statement

3rd statement

4th statement

Step-by-step explanation:

The 2nd statement we know is true since the container was already described with a rectangular pyramid and a rectangular prism.

The 3rd statement is true since the volume for a rectangular prism is,

V=wlh or V=bh (b=wl)

The volume of a rectangular pyramid is

V=1/3*wlh or V= 1/3*bh (b=wl)

The 4th statement is true since the formula for the volume of this container is V=wlh+wlh/3. So substitute the values of the rectangular prism and rectangular pyramid and,

V=10*18*12+(18*10*10)/3

V=2160+1800/3

V=2160+600

V=2760

3 0

3 years ago