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madam [21]
3 years ago
15

A group of finance managers at a car dealership estimates thatt 23% of all cars purchased last year were leases.If a sample of 8

00 cars sold last year obtained, what is the that more than 208 cars are going to be leased? Draw and label the appropriate curve. Your work must include caculator commands
Mathematics
1 answer:
vesna_86 [32]3 years ago
5 0

Answer:

p = 0.52392

Step-by-step explanation:

Here we have

p = 23% = 0.23

\hat p = 208/800 = 0.26

n = 800

q = 1-p = 0.77

α = 5% = 0.05

Here we have

Z test given by

z=\frac{\hat{p}-p}{\sqrt{\frac{pq}{n}}}

From which we have

From the Cpdf we have Probability = 0.0219, z = 2.016

Therefore from the z score = 0.0683, p = 0.52392 from z table.

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Find the solutions of the systems -6x-2y=8 and 7x-2y=-5
Daniel [21]

Answer:

y=4  

x= 3/7

Step-by-step explanation:

2y=8

Divide both sides by 2

2y÷2=8÷2

A.) y=4

Substitute 4 for y

7x−2y=−5

7x+(−2)(4)=−5

Simplify both sides of the equation.

7x−8=−5

Add 8 to both sides

7x−8+8=−5+8

7x=3

Divide both sides by 7

7x÷7= 3÷7

x= <u>3</u>

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7 0
3 years ago
Of the 60 books on a bookshelf, 24 are nonfiction. what percent of the books are nonfiction
mel-nik [20]

40 percent.

Hope it helped! :)

7 0
3 years ago
Need some help for this retake
Alekssandra [29.7K]
Its is 74 because you add all of them then subtract it from the total which in your case is 360
4 0
2 years ago
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A football stadium holds 17,700 seats. The lower level has 300 seats less than 4 times the number of seats in the upper level. T
grigory [225]

Answer:

6x + 200 = 17,000

Step-by-step explanation:

Lower level = 4x - 300

Mid level = 2x + 500

Combine the two equations to find the number of seats in the upper level

(2x + 500) × (4x - 300) = 17,000

Combine like terms

4x × 2x + 500 - 300 = 17,000

<em>6x + 200 = 17,000</em>

3 0
2 years ago
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If rain falls at a unit rate of 3 inches per hour, how much rain will accumulate after 24 hours?
natta225 [31]

Answer:

The answer is 72 inches in 24 hours.

Step-by-step explanation:

If 3 inches tall per hour, and you need to find the amount of rain in 24 hours, you just need to multiply the number of inches per hour by the number of hours required (24 hours):

3×24=72 inches

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3 years ago
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