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Darina [25.2K]
3 years ago
15

There are 2 red pens, 3 blue pens, 1 black pen, and 4 green pens in a desk drawer. You randomly choose one. Find each probabilit

y as a FRACTION in SIMPLEST FORM. Total Pens: __________ 1) P (red) ____________ 2) P (black) ____________ 3) P (purple) ____________ 4) P (not green) ____________ 5) P (black or red) __________ 6) P (orange) _________
Mathematics
1 answer:
zheka24 [161]3 years ago
5 0

Answer:

total = 10

1. 1/5

2. 1/10

3. 0/10

4. 3/5

5. 3/10

6. 0/10

Step-by-step explanation:

total;

The sum of all pen types is: 2 + 3 + 1 + 4 = 10

Pen types are:

   red

   blue

   black

   green

1. P (red)

There are 2 red pens, so the fraction is 2/10 which when simplified is 1/5

2. P (black)

There is one black pen, so simplified it will be 1/10

3. P (purple)

There are no purple pens, so its just 0/10

4. P (not green)

There are ten pens total. 4 of them are green, so we subtract the number of green pens to the number of pens total, 10 - 4 = 6

So 6/10 which simplified is 3/5

5. P (black or red)

We find the sum of red and black pens, so its 3/10 which cannot be simplified any further

6. P (orange)

There are no green pens, so its 0/10

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On saturday ajani sold 2 dozen donuts for every 5 dozen cookies. if he sold a total of 84 dozen itmes, how many dozen were donut
ruslelena [56]

Answer:

24 = no. of dozens of donuts

60 = no. of dozens of cookies

Step-by-step explanation:

The ratio of no. of dozens of donuts to no. of dozens of cookies is 2 to 5

Let 2x = no. of dozens of donuts

and 5x = no. of dozens of cookies

Then 2x + 5x = 84

7x = 84

x = 12

So, 2x = 2(12) = 24 = no. of dozens of donuts

and 5x = 5(12) = 60 = no. of dozens of cookies

Check:  24/60 = 2/5   and 24 + 60 = 84

3 0
3 years ago
Which answer is the equation of the line represented in function notation?
Likurg_2 [28]
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5 0
3 years ago
Find what the question asks. 200 points. Will mark brainleist
kotegsom [21]
Note:
The area of a circle with radius r is πr².
An entire circle has a central angle of 360°.

For the sector with radius = (3+4) = 7cm and a central angle of 120°, the area is
A_{1}= \frac{120}{360}*(49 \pi ) = \frac{49}{3} \pi \, cm^{2}

For the sector with radius =  3 cm and a central angle of 120°. the area is
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The area of the shaded sector (see the figure) is
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Answer: \frac{40}{3}  \pi  \, cm^{2}


6 0
3 years ago
Read 2 more answers
How do you answer this question.
Ipatiy [6.2K]
Lets write this out:-

\frac{50}{100} + \frac{30}{100}

To answer this we just need to add the numerators of both fractions because the denominator's are already common multiples. 

\frac{50}{100}+ \frac{30}{100} = \frac{80}{100}

Now lets simplify \frac{80}{100}.

\frac{80/20}{100/20}=  \frac{4}{5}

So, \frac{50}{100}+  \frac{30}{100} = \frac{80}{100}= \frac{4}{5}

Hope I helped ya!! xD
8 0
3 years ago
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1.What is the approximate volume of a cone with a height of 6 mm and radius of 18 mm?
Masja [62]
1 )  V = 1/3 * 18² * 3.14 * 6 = 2,034.72 mm³
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