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
Arte-miy333 [17]
3 years ago
8

At a local coffee shop, 10% of customers order decaf coffee and 30% are students. Given that 5% of students order decaf coffee,

what is the probability that a randomly selected customer is a student AND orders decaf coffee? Round to 3 decimal places.
Mathematics
1 answer:
DanielleElmas [232]3 years ago
6 0

Answer:

0.015

Step-by-step explanation:

We know that 30% of the customers are students, and 5% of these students order decaf coffee, so we can say that 5% of that 30% (=1.5%) is the percentage of customers that are students and order decaf coffee.

So, the probability of randomly selecting a customer that is a student and orders decaf coffee is 1.5% = 0.015

The percentage of customers that order decaf coffee (10%) is not applied in this solution, as we can have the percentage of students that order decaf coffee just using the percentage of customers that are students, and the percentage of students that order decaf coffee.

You might be interested in
Two planes left simultaneously from the same airport and headed in the same direction towards another airport 3600 km away. The
ExtremeBDS [4]

Answer:

  • 800 kph
  • 600 kph

Step-by-step explanation:

<u>Equation</u>

Let s represent the speed of the faster plane. Then its travel time is ...

  time = distance/speed = 3600/s

travel time for the slower plane is ...

  time = distance/speed = 3600/(s -200)

The difference in these times is 1.5 hours, so we have ...

  3600/(s -200) -3600/s = 1.5

<u>Solution</u>

Multiplying by (2/3)s(s -200), we get ...

  2400(s) -2400(s -200) = s(s -200)

  s^2 -200s -480000 = 0 . . . . . . . . . . rewrite in standard form

  (s -800)(s +600) = 0 . . . . . . . . . . . . . factor

The positive value of s that makes a factor zero is s = 800.

<u>Conclusion</u>

The speed of the faster plane was 800 km/h; of the slower plane, 600 km/h.

_____

<em>Check</em>

The travel time for the faster plane was 3600/800 = 4.5 hours. For the slower plane, 3600/600 = 6 hours, a difference of 1.5 hours.

6 0
2 years ago
EASY MATH (no links or get reported)
katovenus [111]

Answer:

Find the Roots (Zeros) f(x)=x^3-6x^2+13x-20. f(x)=x3−6x2+13x−20 f ( x ) = x 3 - 6 x 2 + 13 x - 20. Set x3−6x2+13x−20 x 3 - 6 x 2 + 13 x - 20 equal to 0 0 .

Step-by-step explanation:

hope this helps

4 0
3 years ago
Nhich equation results from taking the square root of both sides of (x+9)2=25
ale4655 [162]

Answer:

square root of 25=5 and square root of (x+9)=(x+9) so the answer is.... x+9=+-5

Step-by-step explanation:

3 0
3 years ago
Write a conditional statement. Write the converse, inverse and contrapositive for your statement and determine the truth value o
photoshop1234 [79]
A conditional statement involves 2 propositions, p and q. The conditional statement, is a proposition which we write as: p⇒q,

and read  "if p then q" 



Let p be the proposition: Triangle ABC is a right triangle with m(C)=90°.

Let q be the proposition: The sides of triangle ABC are such that 

|AB|^2=|BC|^2+|AC|^2.


An example of a conditional statement is : p⇒q, that is:

if Triangle ABC is a right triangle with m(C)=90° then The sides of triangle ABC are such that |AB|^2=|BC|^2+|AC|^2


This compound proposition (compound because we formed it using 2 other propositions) is true. So the truth value is True, 


the converse, inverse and contrapositive of p⇒q are defined as follows:

converse: q⇒p
inverse: ¬p⇒¬q (if [not p] then [not q])
contrapositive: ¬q⇒¬p

Converse of our statement:

if The sides of triangle ABC are such that |AB|^2=|BC|^2+|AC|^2
then Triangle ABC is a right triangle with m(C)=90°

True


Inverse of the statement:

if Triangle ABC is not a right triangle with m(C) not =90° then The sides of triangle ABC are not such that |AB|^2=|BC|^2+|AC|^2

True


Contrapositive statement:

if The sides of triangle ABC are not such that |AB|^2=|BC|^2+|AC|^2  then Triangle ABC is not a right triangle with m(C)=90°


True









4 0
3 years ago
Ann broke up
natali 33 [55]

Answer:

I think. its below

Step-by-step explanation:

1 x 8 = 8

4 x 8 = 32

4 0
2 years ago
Other questions:
  • Multi digit whole number and decimal fraction operations
    6·1 answer
  • Find the value of the indicated angel. i’ll give u brainly please help.
    13·2 answers
  • Find each rate and unit rate?
    12·1 answer
  • A certain truck weighs 2 metric tons. A person weighing 60 kilograms gets in the truck, followed by a 70 kilogram person. How ma
    13·1 answer
  • At a carnival game, you randomly throw two darts at a board with 15 balloons and break two balloons. What is the probability tha
    7·1 answer
  • Find the area of a circle with a circumference of 3.14 units
    10·1 answer
  • A supermarket buys lettuce each day from its supplier. Each morning any lettuce that is left from the previous day is sold to a
    15·1 answer
  • Which of the following equations demonstrate the set of polynomials is not closed under the certain operations?
    12·1 answer
  • Find the value of x. The figures are not drawn to scale. Pis the center of the circle.
    6·2 answers
  • What is the volume of this object?<br> Top View<br> 2u<br> 2u<br><br><br><br> pls I need help lol
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!