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
frez [133]
3 years ago
8

There are 135 people in a sport centre. 73 people use the gym. 59 people use the swimming pool. 31 people use the track. 19 peop

le use the gym and the pool. 9 people use the pool and the track. 16 people use the gym and the track. 4 people use all three facilities. Given that a randomly selected person uses the gym and the track, what is the probability they do not use the swimming pool?
Mathematics
1 answer:
Anna71 [15]3 years ago
6 0

Answer:

1/9

Step-by-step explanation:

135 in Sport centre: Total

59:swimming pool

31:track

19 both swimming and gym

16 gym and track

4 all three facilities

4 people use all three facilities, then

16 - 4 = 12 people use the gym and the track and do not use the pool;

9 - 4 = 5 people use the pool and the track and do not use the gym;

19 - 4 = 15 people use the gym and the pool and do not use the track.

At least two facilities use 4 + 12 + 5 + 15 = 36 people, 4 of them use all three facilities. Thus, the probability that a randomly selected person which uses at least two facilities, uses all the facilities is

4/36=1/9

Hope this helps!!!

You might be interested in
A triangle is placed in a semicircle with a radius of 7mm , as shown below. Find the area of the shaded region. Use the value 3.
timurjin [86]
We either need to see a picture of this and/or get more information about the measurements of the triangle. In general, the area outside of the triangle will be the area of the semi-circle minus the area of the triangle itself, or: 1/2*49*3.14 - 1/2 b*h of the triangle. That first part, which is the area of the semi-circle, works out to 76.93 So based on the info we have, it becomes 76.93 - 1/2*b*h of the triangle = area outside of triangle. 
8 0
3 years ago
Please do first question AND HURRY.
sweet-ann [11.9K]
The picture is cut off. We can't solve :/
5 0
3 years ago
185 times 28 please help me
aev [14]
The answer is 5,180! I used a calculator
3 0
3 years ago
Read 2 more answers
Calculate 3217. km + 13.1 km + 1.30 km. round off if necessary to apply the rule of significant figures for addition and subtrac
QveST [7]
3217 + 13.1 + 1.3 can also be written as

3217.0
+ 13.1
     1.3
----------
<span>3231.4
</span>
Your final answer should be <span>3231.4 or option 4. Hope this helps!</span>
6 0
3 years ago
There are 7/8 kilograms of salt in the kitchen. Mrs. Jackson used 2/15 of salt when preparing dinner . How much salt did she use
neonofarm [45]

so since Mrs Jackson used 2/15 of 7/8, the amount she used is simply their product.


\bf \stackrel{\textit{how much is }\frac{2}{15}\textit{ of }\frac{7}{8}?}{\cfrac{7}{8}\cdot \cfrac{2}{15}}\implies \cfrac{7}{15}\cdot \cfrac{2}{8}\implies \cfrac{7}{15}\cdot \cfrac{1}{4}\implies \cfrac{7}{60}

8 0
2 years ago
Other questions:
  • at Alan's sports shop, GO FAST trainers cost £40.95 originally and there is a third off in the sale.  At  Irene's sport shop, GO
    9·2 answers
  • A 9 foot roll of aluminium foil costs 3.87. What is the price per yard
    6·2 answers
  • A plants height is 1.4 times it’s age. write an equation for this situation.
    7·1 answer
  • Write the expression as an exponent: 0.4^5·0.16
    7·1 answer
  • Suppose you have an experiment where you flip a coin three times. You then count the number of heads. a.)State the random variab
    6·2 answers
  • Which table shows the reflection of f(x) across the y-axis? HELP ASAP!!
    7·1 answer
  • Which of the expressions below is greater than 100? Select all that apply.
    13·1 answer
  • An 18-ft tall tree casts a shadow of 25 feet. Find the angle of elevation of the sun.
    5·1 answer
  • Point P is located at (5, –4). Point P is moved 3 units up and 4 units left. Where is Point P located now?
    5·2 answers
  • I need help pleaseee
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!