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zhuklara [117]
3 years ago
9

2. What is the probability of selling between and including one and four silver cars? Interpret this probability in context.

Mathematics
1 answer:
gladu [14]3 years ago
3 0

Answer:

0.72868

Problem Statement:

23% of the cars a certain automaker manufactures are silver. Below is the probability distribution for the number of

silver cars sold by a car dealer in the next five car sales.

No. of  Silver Cars    0             1             2              3              4             5

Probability         0.27068   0.40426  0.24151  0.07214  0.01077  0.00064

Step-by-step explanation:

To find the probability that the dealer sells between one and four silver cars, we need to add the probabilities of him selling 1,2,3 or 4 cars.

<u>Probability that the dealer sells between and including one and four silver cars</u>= 0.27068+ 0.40426  + 0.24151  + 0.07214  =0.72868

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Y = -3x +10 3x +y = 5 substitution method
spayn [35]

Answer:

no solutions

Step-by-step explanation:

y = -3x +10

3x +y = 5

Substitute the first equation into the second equation

Let every instance of y in the second equation be replaced with -3x+10

3x+ (-3x+10) = 5

Combine like terms

10 =5

This is never true so there are no solutions

(These are parallel lines with the same slope but different y intercepts)

3 0
3 years ago
You invest $2,000 in an account that is compounded annually at an interest rate of 5%. You never withdraw money from the account
castortr0y [4]
Formula for amount for compound interest:
Amount, A =  P(1 + r/100)^n
Where r is rate, P is principal, and n is the number of years.
P = 2000, r = 5, n = t years.
A = 2000( 1 + 5/100)^t
A = 200(1+0.05)^t
A = 2000(1.05)^t
A(t) = 2000(1.05)^t 
6 0
3 years ago
If joe travels 37 miles in 30 minutes, how far can he travel in 4 hours?
harkovskaia [24]

Answer:

296 miles

Step-by-step explanation:

4 hours=240 minutes

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37*8=296

6 0
3 years ago
Read 2 more answers
I don’t understand how to find the dimension,<br> Need help :c
slava [35]

Width = W

Length = 2 times the width plus 3 feet = 2W + 3

Area of triangle A = L * W

A = W (2W + 3)

20 = 2W^2 + 3W

2W^2 + 3W - 20 = 0

(W + 4) (2W - 5) = 0

W + 4 = 0; W = - 4 (width cannot be negative, excluded)

2W - 5 = 0

2W = 5

W = 2.5

L = 2W + 3 = 2(2.5) + 3 = 8

Answer:

Width = 2.5 feet and Length = 8 feet

Hope it helps.

8 0
3 years ago
A horse ran 800 m and 40 seconds 1200 meters in 60 seconds and 480 m in 24 seconds is a proportional relationship if so what is
SVETLANKA909090 [29]

Answer:

Step-by-step explanation:

Speed = distance travelled/time

A horse ran 800 m in 40 seconds. This means that the speed is

800/40 = 20 m/s

The horse ran 1200 m in 60 seconds. This means that the speed is

1200/60 = 20 m/s

The horse ran 1200 m in 60 seconds. This means that the speed is

480/24 = 20 m/s

Since the horse's rate or speed is the same at each scenario, it means that the relationship between the distance covered by the horse and the time taken is proportional.

Let k represent the constant of proportionality. The constant of proportionality is 20. It represents speed of the horse.

Let d represent the distance in meters.

Let t represent the time in seconds.

Therefore

d = 20t

7 0
3 years ago
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