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
NemiM [27]
3 years ago
11

John runs a computer software store. Yesterday he counted 140 people who walked by the store, 63 of whom came into the store. Of

the 63, only 25 bought something in the store.
(a) Estimate the probability that a person who walks by the store will enter the store. (Round your answer to two decimal places.)
(b) Estimate the probability that a person who walks into the store will buy something. (Round your answer to two decimal places.)
(c) Estimate the probability that a person who walks by the store will come in and buy something. (Round your answer to two decimal places.)
(d) Estimate the probability that a person who comes into the store will buy nothing. (Round your answer to two decimal places.)
Mathematics
2 answers:
Grace [21]3 years ago
8 0

Answer:

.................

Step-by-step explanation:

............

Alik [6]3 years ago
6 0
A. 45%
b. 39.68%
c. 17.86%
d. 60.32%

You might be interested in
A car motercycle leaves at noon from the same location, heading in the same direction. The average speed of the car is 30mph slo
alina1380 [7]

Answer:

speed of motorcycle = 40 mph

speed of car = 50 mph

Step-by-step explanation:

Here is the complete question

A car and a motorcycle leave at noon from the same location, heading in the same direction. The average speed of the car is 30 mph slower than twice the speed of the motorcycle. In two hours, the car is 20 miles ahead of the motorcycle. Find the speed of both the car and the motorcycle, in miles per hour.

Speed = distance / time

This question would be solved using simultaneous equation

let m =  average speed of the motorcycle

c = average speed of the car

c = 2m - 30  equation 1

20 =(c - m) x 2 equation 2

insert equation 1 into equation 2 and divide through by 2

10 = (2m - 30) - m

solve for m

m = 40 mph

substitute for m in equation 1

2(40) - 20 = 50 mph

8 0
3 years ago
I need help with this please!​
12345 [234]

Answer:

ok. i don't understand this so could u be more specific and tell me what's ur problem

4 0
2 years ago
Find 45% of 60 with work
Ilya [14]
Step 1. convert 45% into a decimal value
45% = 0.45

step 2. multiply the decimal value with the main number
0.45 *60

step 3.  ???

step 4. Profit

6 0
3 years ago
Read 2 more answers
In the following expression, n is a rational number: Which expression below is equivalent to this expression?
gogolik [260]

Answer:

none of them

Step-by-step explanation:

7 0
1 year ago
Which choice is equivalent to the expression below when y2 0?<br> √y^2 + √16y^3 – 4y√y
DanielleElmas [232]

Answer:

Option C.

Step-by-step explanation:

We start with the expression:

\sqrt{y^3}  + \sqrt{16*y^3} - 4*y\sqrt{y}

where y > 0. (this allow us to have y inside a square root, so we don't mess with complex numbers)

We want to find the equivalent expression to this one.

Here, we can do the next two simplifications:

\sqrt{16*y^3} = \sqrt{16} \sqrt{y^3} = 4*\sqrt{y^3}

And:

y*\sqrt{y} = \sqrt{y^2} *\sqrt{y} = \sqrt{y^2*y} = \sqrt{y^3}

If we apply these two to our initial expression, we can rewrite it as:

\sqrt{y^3}  + \sqrt{16*y^3} - 4*y\sqrt{y}

\sqrt{y^3}  + 4*\sqrt{y^3} - 4\sqrt{y^3} = \sqrt{y^3}

Here we can use the second simplification again, to rewrite:

\sqrt{y^3} = y*\sqrt{y}

So, concluding, we have:

\sqrt{y^3}  + \sqrt{16*y^3} - 4*y\sqrt{y} = y*\sqrt{y}

Then the correct option is C.

8 0
3 years ago
Other questions:
  • Using the distance formula, find the distance between these two points. Round to the nearest tenth. (8,9) and (3,2)
    11·1 answer
  • At Janine party the orchestra has 10 guitar players and 8 flute players. At brown party the orchestra has 12 guitar players and
    10·1 answer
  • Simplify the expression -1/4(8-3x)-1/4x
    7·2 answers
  • How do i solve y=4-1/(3+x)
    7·1 answer
  • What is the relationship between two horizontal line
    7·1 answer
  • Please help giving 10pts
    6·2 answers
  • What is the mean absolute deviation?
    7·1 answer
  • What is the image of (-8,6) after a translation over the line y=-x
    15·1 answer
  • −2x−(−5−4x)=−5(2x−7)
    13·1 answer
  • Read the following writing prompt: A popular media company is advertising a cell phone for preschoolers. How young is too young
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!