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3 years ago

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Mathematics

2 answers:

KonstantinChe [14]3 years ago

5 0

Answer:

X = -25/3

hope you find it useful!!

Kaylis [27]3 years ago

4 0

Answer:

-50/6 or -25/3

Step-by-step explanation:

to isolate x, you multiply -5/2 to each side.

10/3 * -5/2

when you simplify you get

-25/3

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If 5 pens cost Rs 90,what is the cost of 8 pens?

Brilliant_brown [7]

Answer:

Rs. 144

Step-by-step explanation:

To what the cost of each pen, divide 90/5

You get 18. So each pen costs 18.

Now multiply 18 by 8 and you would get 144.

So, it would cost Rs. 144

8 0

4 years ago

Equation R: y = -2x + 10 Equation S: y = 3x - 20 What is the solution ( , )

Dimas [21]

Step-by-step explanation:

3x -20= -2x +10

or,5x=30

or,X=30/5

or,X=6

Y= -2×6 + 10

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therefore solution is (6, -2)

3 0

3 years ago

A company produces three different types of wrenches: W111, W222, and W333. It has a firm order for 2,000 W111 wrenches, 3,750 W

lawyer [7]

Answer:

z (min) = 150090.8 ( monetary units ) ( $ )

x₁ = 2000 x₄ = 0 x₂ = 3382 x₅ = 368 x₃ = 0 x₆ = 1700

Step-by-step explanation:

wrenches produced in-house ( W111 = x₁ W222 = x₂ W333 = x₃ )

x₁ x₂ and x₃

wrenches produced outside (W111 = x₄ W222 = x₅ W333 = x₆ )

x₄ x₅ and x₆

Objective function:

z = 17*x₁ + 20.40*x₄ + 19*x₂ + 21.85*x₅ + 23*x₃ + 25.76*x₆ to minimize

First constraint: Manufacturing hours: 16500

2.5*x₁ + 3.4*x₂ + 3.8*x₃ ≤ 16500

Second constraint: Inspection hours : 1600

0.25*x₁ + 0.3*x₂ + 0.45*x₃ ≤ 1600

Three demands constraint:

x₁ + x₄ = 2000

x₂ + x₅ = 3750

x₃ + x₆ = 1700

x₁ ≥ 0 x₂ ≥ 0 x₃ ≥ 0 x₄ ≥ 0 x₅ ≥ 0 x₆ ≥ 0 all integers

After 6 iterations with on-line solver the solution is:

z (min) = 150090.8 ( monetary units ) ( $ )

x₁ = 2000 x₄ = 0 x₂ = 3382 x₅ = 368 x₃ = 0 x₆ = 1700

6 0

3 years ago

Anna wants to call Holly. Holly is on vacation in Asia. It is a time difference of ten hours. Holly's time is always later than

ivolga24 [154]

5:35 am hope this helps

5 0

3 years ago

Grading managers. Some companies "grade on a bell curve" to compare the performance of their managers and professional workers.

Monica [59]

Answer:

$\mu = 250, \sigma = 175.781$

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Solution to the problem

Let X the random variable that represent the grades of a population, and for this case we know the distribution for X is given by:

$X \sim N(\mu,\sigma)$