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3 years ago

Helpppppp pleaseeeeeee!!!!!

Mathematics

1 answer:

vodka [1.7K]3 years ago

6 0

Answer:

x=1.25, y=2.5

Step-by-step explanation:

x = # of soft tacos

y = # of double deckers

3x+3y=11.25 *4 => 12x+12y=45

4x+2y=10 *-3 =>-12x-6y=-30

6y=15

y=2.5

4x+2(2.5)=10

4x+5=10

4x=5

x=1.25

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The percent frequency distributions of job satisfaction scores for a sample of information systems (IS) senior executives and mi

tiny-mole [99]

Corrected Question

a. Develop a probability distribution for the job satisfaction score of a senior executive.

b. Develop a probability distribution for the job satisfaction score of a middle manager.

c. What is the probability a senior executive will report a job satisfaction score of 4 or 5?

d. What is the probability a middle manager is very satisfied?

Answer:

(d)0.28

Step-by-step explanation:

The percent frequency distributions of job satisfaction scores os give below:

$\left|\begin{array}{c|c|c}$Job Satisfaction Score&$IS Senior Executives(\%)&$IS Middle Managers(\%)\\1&5&4\\2&9&10\\3&3&12\\4&42&46\\5&41&28\end{array}\right|$

(a)Probability distribution for the job satisfaction score of a senior executive.

$\left|\begin{array}{c|c}$Job Satisfaction Score&$Relative Frequency (f_1(x))\\------&------\\1&0.05\\2&0.09\\3&0.03\\4&0.42\\5&0.41\end{array}\right|$

(b)Probability distribution for the job satisfaction score of a middle manager.

$\left|\begin{array}{c|c}$Job Satisfaction Score&$Relative Frequency (f_2(x))\\1&0.04\\2&0.10\\3&0.12\\4&0.46\\5&0.28\end{array}\right|$

(c)Probability a senior executive will report a job satisfaction score of 4 or 5

P(a senior executive will report a job satisfaction score of 4 or 5)

$=f_1(4)+f_1(5)\\=0.42+0.41\\=0.83$

(d)Probability a middle manager is very satisfied

The probability a middle manager is very satisfied

$=f_2(5)\\=0.28$

7 0

3 years ago

What Is 7 Rounded To The Nearest Tenth?

AnnyKZ [126]

I think that it is 7.0

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3 years ago

C. How many pieces of siding need to be purchased? Justify your reasoning.

Mademuasel [1]

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Step-by-step explanation:

Because 25x33x17=14025

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3 years ago

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ANEK [815]

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3 years ago

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What are the solutions of the equation x^2+4x=96

Degger [83]

X² + 4x = 96

Subtract 96 from both sides to get the equation equal to zero:
x² + 4x - 96 = 0

We can solve for x either by factoring or by using the Quadratic Formula. Let's attempt to factor first. To factor, find two numbers whose sum is 4 and whose product is -96. Since 96 is negative, the pair will be one positive and one negative (a positive times a negative is always negative). Let's start listing addends of 4 and calculating their product.

12 + (-8) = 4; 12 × (-8) = -96

The pair is 12 and -8. The factored polynomial is (x + 12)(x - 8). To find x, find the zeros.

x + 12 = 0
x = -12

x - 8 = 0
x = 8

Answer:
x = -12 and x = 8

5 0

3 years ago