1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
goldfiish [28.3K]
3 years ago
13

PLEASE HELP FIRST GETS BRAINLIEST!!!!!!

Mathematics
1 answer:
loris [4]3 years ago
3 0

|\Omega|=12\cdot11=132\\ |A|=5\cdot4=20\\\\ P(A)=\dfrac{20}{132}=\dfrac{5}{33}

You might be interested in
we said that the ratio of girls to boys in the class was 2:9. if there were 90 boys in the 9th grade, how many girls are there
Juliette [100K]

Answer:

20

Step-by-step explanation:

If the ratio of boys is 9 there are 90 boys. If 9=90 then 1= 10. 10 x 2 = 20

I hope this helps :0)

7 0
3 years ago
Read 2 more answers
Please help with the question 2 to 18
vladimir1956 [14]
Since these questions all require similar methods of solving, I will only completely work out the first question of each type.

2. To find \frac{7}{10}as a decimal, all we need to do is complete the fraction by dividing the numerator by the denominator.

\frac{7}{10} = 7 / 10 = 0.7

\frac{7}{10} as a decimal is 0.7.

3. To write a fraction as a percentage, we must first convert it into a decimal, the way we did in problem 2.

\frac{13}{20} =0.65

Then to change that number into a percentage, we can either multiply it by 100, or (my personal shortcut) just shift the decimal point over two places to the right.

0.65 = 65%

which is the answer to question 3.
\frac{13}{20} written as a percent is 65%.

4. Writing a percentage as a fraction is a bit easier than writing a fraction as a percentage. All you need to do is place the percentage in the numerator's place of a fraction with 100 as the denominator and simplify.

2%5 = \frac{25}{100}

Since 25 goes into 100 four times, we can simplify this fraction.

\frac{25}{100} = \frac{1}{4}

which is our answer.

25% written as a fraction is \frac{1}{4}.

5. This is the same as problem 3, so I won't show my work for the sake of time.

\frac{2}{5} as a percentage is 40%.

6. This is the same as problem 1, so I will not show steps again.

\frac{3}{20} as a decimal is 0.15.

7. Done similar problems in past. No work shown.

\frac{21}{50} as a percent is 42%.

8. Same as last problem.

\frac{1}{25} as a percent is 4%.

9. Same as number 4.

 6% as a fraction is \frac{3}{50}.

10. Similar in past.

\frac{3}{5} as a percentage is 60%.

11. Same as 6.

\frac{12}{25} as a decimal is 0.48.

12. Done a lot of these so far.

\frac{3}{10} as a percentage is 30%.

13. Just did one like this.

\frac{3}{4} as a percentage is 75%.

14. Same as 4 and 9.

65% as a fraction is \frac{13}{20}.

15. Plenty of these done in past.

\frac{1}{5} as a percentage is 20%.

16. Last problem, and it's just like the one just before this.

\frac{9}{10} written as a percent is 90%.

So there are the results.
Hope that helped! =)
6 0
3 years ago
Read 2 more answers
Find the percent of increase from 20 to 45.
Aloiza [94]
It is a 125% increase from 20 to 45
4 0
3 years ago
Read 2 more answers
Thirty minutes of exercise per day can reduce your blood pressure. Which of the following is a guideline for establishing causal
Lynna [10]

Answer:

opt. (d)

Step-by-step explanation:

6 0
3 years ago
-2x+3=9. What does x equal?
Dimas [21]

Answer:

<h2>x= -3</h2>

Step-by-step explanation:

- 2x + 3 = 9 \\  - 2x = 9 - 3 \\  - 2x = 6 \\  \frac{ - 2x}{ - 2}  =  \frac{6}{ - 2}

x =  - 3

3 0
3 years ago
Read 2 more answers
Other questions:
  • Help on my HW por favor
    13·2 answers
  • How to be good at maths if you cant keep up in class
    13·2 answers
  • Describe a relationship modeled by the function f(x) = 4x3 − 72x2 + 320x
    7·1 answer
  • PLEASE HELP!!!!The ratio of the perimeters of two rectangles is 5 to 8. The perimeter of the larger rectangle is 72 inches. What
    15·1 answer
  • 9. The front part of a tent is 8 feet long and 5 feet tall. What is the area of the front part of the tent?
    6·1 answer
  • A rectangular prism and a cylinder both have a height of
    15·1 answer
  • حل المعادلتين باستتخدام المعادله المصفوفه او الصف البسيط<br> ٢م-ل=1<br> م+ل=٢-
    14·1 answer
  • uh, can someone frig.giNG help this is finding the area for a square prism. but i forgot what to do, soo can y'all help me? some
    7·1 answer
  • Simplify the expression 2x+4(3y+x).
    9·2 answers
  • ANSWER FAST FAST FAST FAST FAST answer here r u 11 and a girl and live in etna ohio say yes for 100 points!!
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!