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3 years ago

11

At the bank brent exchanges $50 in bills for 50 one-dollars coins. the total mass of the coins is 405 grams. estimate the mass o

f 1 one - dollar coin.

2 answers:

natali 33 [55]3 years ago

3 0

8 as you round up 405 to 400 and divide by 50 and get 8

Sloan [31]3 years ago

3 0

The mass of each coin will be 8.1

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An airline charges the following baggage fees: $25 for the first bag and $35 for the second. Suppose 51% of passengers have no c

Orlov [11]

Answer:

The average revenue per passenger is about $13.85

μ = $13.85

The corresponding standard deviation is $14.51

σ = $14.51

The airline should expect revenue of $1,662 with a standard deviation of $14.51 for a flight of 120 passengers.

Expected revenue = $1,662 ± 14.51

Step-by-step explanation:

An airline charges the following baggage fees:

$25 for the first bag and $35 for the second

Suppose 51% of passengers have no checked luggage,

P(0) = 0.51

33% have one piece of checked luggage and 16% have two pieces.

P(1) = 0.33

P(2) = 0.16

a. Build a probability model, compute the average revenue per passenger, and compute the corresponding standard deviation.

The average revenue per passenger is given by

μ = 0×P(0) + 25×P(1) + 35×P(2)

μ = 0×0.51 + 25×0.33 + 35×0.16

μ = 0 + 8.25 + 5.6

μ = $13.85

Therefore, the average revenue per passenger is about $13.85

The corresponding standard deviation is given by

σ = √σ²

Where σ² is the variance and is given by

σ² = (0 - 13.85)²×0.51 + (25 - 13.85)²×0.33 + (35 - 13.85)²×0.16

σ² = 97.83 + 41.03 + 71.57

σ² = 210.43

So,

σ = √210.43

σ = $14.51

Therefore, the corresponding standard deviation is $14.51

b. About how much revenue should the airline expect for a flight of 120 passengers? With what standard deviation?

For 120 passengers,

Expected revenue = 120×$13.85

Expected revenue = $1,662 ± 14.51

Therefore, the airline should expect revenue of $1,662 with a standard deviation of $14.51 for a flight of 120 passengers.

6 0

3 years ago

What is the graph of y= 3/4x - 3

alexira [117]

-3 is the y intercept, so place a point there. The slope is 3/4. So from your -3 point, go up 3 and over 4. Make a point. Do that another time and also from the -3 intercept go down 3 and over left 4, the. you’ve got yourself a nice line.

4 0

3 years ago

Find each of the numbers below. Simplify your answers as much as possible.

puteri [66]

Answer:

a. 4

b. -8

c. -2

Step-by-step explanation:

Take any number x;

Its opposite is -x

The opposite of its opposite is x

Using the above statements, we can solve the following questions

Solving (a): -4

In this case:

$x = -4$

The opposite; -x is

$-x = -(-4)$

$-x = 4$

Solving (b): 8

In this case:

$x = 8$

The opposite; -x is

$-x = -8$

Solving (c): -2

In this case:

$x = -2$

The opposite; -x is

$-x = -(-2)$

$-x = 2$

The opposite; -(-x) is

$-(-x) = -2$

$x = -2$

5 0

3 years ago

Pls help me its also easy

egoroff_w [7]

Answer:

C

Step-by-step explanation:

Ferdinand's equipment is higher than Rachel's equipment.

6 0

3 years ago

Below is the graph of y=x^3. <br> Translate it to make it the graph of y=(x-4)^3-1

Vadim26 [7]

Answer:7=0.5 |x-4| -3

+3 +3

10=0.5 |x-4|

10/0.5=0.5/0.5 |x-4|

20=|x-4|

^

-20=x-4 20=x-4

+4 +4 +4 +4

-16=x 24=x

The answers are -16=x and 24=x

Hope this helps, an if it pleases you put as the brainliest answer

8 0

3 years ago

Read 2 more answers