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
DIA [1.3K]
3 years ago
14

The credit department of Lion's Department Store in Anaheim, California, reported that 30% of their sales are cash, 30% are paid

with a credit card, and 40% with a debit card. Twenty percent of the cash purchases, 90% of the credit card purchases, and 60% of the debit card purchases are for more than $50. Ms. Tina Stevens just purchased a new dress that cost $120. What is the probability that she paid cash?
Mathematics
1 answer:
Oliga [24]3 years ago
6 0

Answer:

Hence the probability that she paid cash is  0.105

Step-by-step explanation:  

P(cash) = 0.3  

P(credit card ) = 0.3  

P(debit card ) = 0.4  

P ( more than $50 | cash ) = 0.2  

P (more than $50 | credit card ) =0.9  

P (more than $ 50 |debit card ) = 0.6  

P ( more than $50) = P ( more than $50 | cash )* P (cash) + P (more than $50 credit card ) * P(credit card ) + P (more than $ 50 |debit card )* P(debit card )  

= 0.2 * 0.3 + 0.9 * 0.3 + 0.6* 0.4  

= 0.57  

P ( more than $50) = P ( more than $50 | cash )* P (cash) / P ( more than $50)  

= 0.2* 0.3 / 0.57  

= 0.105

You might be interested in
Find the perimeter and area of the figure.
Slav-nsk [51]
Answer:

P=2 (a+b)=2•(7+15)=44
A= b h= 15•5=75
3 0
2 years ago
What is the value of f^-1(-3)?​
poizon [28]

Flip the curve over <em>y</em><em> </em><em>=</em><em> </em><em>x</em><em> </em>then observe what is y when x = -3. You will find that f^{-1}(x)=1.5.

Hope this helps.

8 0
3 years ago
1. Find the measure of the given angle.<br> 156°<br> L<br> N<br> ?<br> M<br> 124
Dominik [7]

Answer:

40°

Step-by-step explanation:

360-156-124=80

80/2=40

8 0
2 years ago
Which ratios are less than 8 to 10? Check all that apply.<br> 6/20<br> 3:5<br> 50/100<br> 13:15
poizon [28]

9514 1404 393

Answer:

  6/20, 3:5, 50/100 are all less than 8/10

Step-by-step explanation:

It can help to give all the ratios a common denominator. (We'll use 100, and fudge the last one a bit.)

  8/10 = 80/100 . . . . our reference value

__

  6/20 = 30/100 . . . less than 8/10

  3/5 = 60/100 . . . . less than 8/10

  50/100 . . . . . . . . . less than 8/10

  13/15 ≈ 86.7/100 . . . more than 8/10

6 0
3 years ago
Which TRANSFORMATION is represented by
astraxan [27]

9514 1404 393

Answer:

  Translation

Step-by-step explanation:

When constant values are added to x and/or y, the result is translation.

6 0
3 years ago
Other questions:
  • A total of
    15·1 answer
  • Which of these ordered pairs is a solution to the inequality
    13·1 answer
  • A. Circle
    9·2 answers
  • The temperature at the base of a mountain is 9 degrees. For every 1000 feet rise in altitude, the temperature drops 3 degrees. T
    7·1 answer
  • to stay healthy joe knows that it is recommended that a person on a 2000 calorie per day diet consume no more than 65 grams of f
    7·1 answer
  • Please help me out with the odds on this one (IMPORTANT) *determine whether the given relation is a function*
    12·1 answer
  • A sandwich store charges $20 to have 3 turkey subs delivered and $26 to have 4 delivered. How much does the store charge for the
    10·1 answer
  • There are 12 dozen pencils in a gross. how many pencils are in 15 gross
    7·1 answer
  • If f (x) = 4x - 11 , What is the value of f(5)<br> a. 20x - 55<br> b. 34<br> c. 9<br> d. 4
    15·1 answer
  • There are 40 people in a restaurant,
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!