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
marusya05 [52]
3 years ago
10

There are 5 chemistry, 6 physics, and 7 math teachers in a school. if 3 teachers are selected randomly, find the probability tha

t at least one is a math teacher.
Mathematics
1 answer:
mrs_skeptik [129]3 years ago
6 0
77.2%

To find the probably and at least on you must find the probability of none and subtract from one.

The probability of none can be found like so:

(5+6 over 5+6+7)^3 = .228

1 - .228 = .772

Hope this helps!
You might be interested in
Luke’s that seven pieces of wood on top of one another if each piece was 4/8 of a foot tall how tall was his pile
Ludmilka [50]

Answer:

6 1/2 feet or 78 inches tall

Step-by-step explanation:

You have to multiply 4/8 by 7/1

First you multiply the nominators: 4 × 7 = 28

Then you multiply the denominators: 8 × 1 = 8

So the fraction would be 28/8 and it simplifies to 7/2

You can turn it into an improper fraction by seeing how many times 2 will go into seven evenly, which would be 6 times with 1 half left over

Therefore it would be 6 1/2 feet or 78 inches tall

8 0
3 years ago
In the year 1990, a total of 320 points were scored in a basketball game between the golden state warriors and the Denver nugget
liberstina [14]
6 points per minute
3 0
3 years ago
A bag contains yellow marbles in red marbles 65 in total. The number of yellow marbles is five more than four times the number o
antoniya [11.8K]

Answer: there would be 52 yellow marbles

Step-by-step explanation:

Ok we know that there is 65 marbles in total? Right? So then we’d take 65 and think, what could we divide this by and start guessing and estimating numbers. (I guessed 5, one because it’s divisible by 65, two there is 5 times more yellow marbles than red marbles.) So 5 divided by 65 is 13. But, in order to find the amount of yellow marbles, we need to subtract the whole number by the amount of red marbles. (So 65-13 =?) if you subtract that you get 52 yellow marbles.  :)

7 0
3 years ago
If U=pi(r+h),find r when U=16 1/2 and h=2<br> solve this question by take the value of pi 22/7
I am Lyosha [343]
U=\pi (r+h) \\\\ 16 \frac{1}{2}= \frac{22}{7}\cdot (r+2) \\\\ \frac{33}{2} : \frac{22}{7}=r+2 \\\\ \frac{\not 33}{2}\cdot \frac{7}{\not 22}=r+2 \\\\ \frac{3}{2} \cdot \frac{7}{2}=r+2 \\\\ \frac{21}{4}=r^{(4}+2^{(4} \\\\ 21=4r+8 \\\\ 4r=21-8 \\\\ 4r=13 \\\\ \boxed{r=\frac{13}{4}}
4 0
3 years ago
If the two prisms have equal heights and volumes, what is the length of the x in Polam I?
anastassius [24]

Answer:

A

Step-by-step explanation:

Because it is same height

3 0
3 years ago
Read 2 more answers
Other questions:
  • In the past you paid $800$800 per month to rent your apartment. You now pay $900$900 per month for your rent. What is the percen
    13·2 answers
  • What are rational numbers
    15·1 answer
  • Do any of y’all know please ? which ever answer shows their work are getting brainly
    9·1 answer
  • The price per share of a professional sports team increased from $58 to $65 over the past year. What is the stock’s percent incr
    13·1 answer
  • Find the x-intercept of the function: f(x) = 6x - 2. Round answer to the nearest hundredth, if necessary. A) (0.39, 0) B) (1.00,
    7·1 answer
  • HELP!!!!!
    12·2 answers
  • WILL GIVE BRAINLEST ! <br> hAVE A GOOD DAy :)!
    6·2 answers
  • If a bag contains 12 apples, 4 bananas, and 8 oranges, what is the part-to-whole ratio bananas to all fruit?
    10·2 answers
  • Priya bought these items at the grocery store. Find each unit price.
    11·1 answer
  • Evaluate.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!