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3 years ago

Tia cycles 90 miles in total on

Mathematics

1 answer:

Hoochie [10]3 years ago

3 0

Tia travels 60 miles on Monday.

Step-by-step explanation:

Total distance = 90 miles

Let,

Distance on Monday = x

Distance on Tuesday = x/2

According to given statement;

$x+\frac{x}{2}=90$

Solving the equation for the value of x;

$\frac{2x+x}{2}=90\\$

Multiplying both sides by 2;

$3x=180\\x=\frac{180}{3} \\x=60$

Tia travels 60 miles on Monday.

Keywords: Addition, Division.

Learn more about addition at;

#LearnwithBrainly

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The following probability distributions of job satisfaction scores for a sample of information systems (IS) senior executives an

Mashcka [7]

Answer:

Step-by-step explanation:

To calculate ;

1) the expected value of the job satisfaction score for senior executives ;

expected value = Summation (Px)

= 1 x 0.05 + 2 x 0.09 + 3 x 0.03 + 4 x 0.42 + 5 x 0.41

= 4.05

2) the expected value of the job satisfaction score for middle managers;

= 1 x 0.04 + 2 x 0.10 + 3 x 0.12 + 4 x 0.46 + 5 x 0.28

= 3.84

c) the variance of job satisfaction scores for executives and middle managers (to 2 decimals).

Executives ; Variance = Summation(PX^2 - Summation(PX)^2

i) For Executive Managers = 1 x 0.05 + 2^2 x 0.09 + 3^2 x 0.03 + 4^2 x 0.42 + 5^2 x 0.41 - 4.05^2 = 1.246 = 1.25

ii) for middle managers ; 1 x 0.04 + 2^2 x 0.10 + 3^2 x 0.12 + 4^2 x 0.46 + 5^2 x 0.28 - 3.84^2 = 1.134 = 1.13

d) the standard deviation of job satisfaction scores for both probability distributions (to 2 decimals). Executives, Middle managers;

For Executives = square root [ 1 x 0.05 + 2^2 x 0.09 + 3^2 x 0.03 + 4^2 x 0.42 + 5^2 x 0.41 - 4.05^2] = 1.12

For Middle Managers ; Square root [1 x 0.04 + 2^2 x 0.10 + 3^2 x 0.12 + 4^2 x 0.46 + 5^2 x 0.28 - 3.84^2 ] = 1.06

e) from the values gotten for the variance of both executive and middle managers, the variance of the former is more than that of the latter as such higher satisfaction with the executive managers.

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3 years ago

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DaniilM [7]

Answer:

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Step-by-step explanation:

Given

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2g - 2h = b + 4 ( add 2h to both sides )

2g = b + 4 + 2h ( divide both sides by 2 )

g = $\frac{b+4+2h}{2}$

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3 years ago

CP is equal to 200 SP is equal to 100 find the profit or loss

ioda

Answer:

100

Step-by-step explanation:

if SP>CP,

It is profit [SP - CP = Profit]

if CP>SP,

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Here in the question CP>SP so,

loss = CP - SP

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= 100

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Step-by-step explanation:

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