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3 years ago

A tube of toothpaste is marked $3.92 for 8 ounces. What is the price per ounce?

Mathematics

2 answers:

Alisiya [41]3 years ago

5 0

Find one ounce $3.92/8=$0.49
$0.49 per ounce

myrzilka [38]3 years ago

4 0

Answer:

$0.49 hope this helps you out

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An airline charges the following baggage fees: $25 for the first bag and $35 for the second. Suppose 54% of passengers have no c

Triss [41]

Answer:

(a) The average baggage-related revenue per passenger is $15.70.

(b) The standard deviation of baggage-related revenue is $19.95.

Step-by-step explanation:

Let the random variable <em>X</em> represent the baggage-related revenue per passenger.

It is provided that the baggage fees is $25 for the first bag and $35 for the second.

The probability model is:

X : 0 25 60

P (X) : 0.54 0.34 0.12

(a)

Compute the average baggage-related revenue per passenger as follows:

$E(X)=\sum {X\times P (X)}$

$=(0\times 0.54)+(25\times 0.34)+(60\times 0.12)\\\\=0+8.50+7.20\\\\=15.70$

Thus, the average baggage-related revenue per passenger is $15.70.

(b)

Compute the standard deviation of baggage-related revenue as follows:

$E (X^{2})=\sum X^{2}\times P(X)}\\\\=(0^{2}\times 0.54)+(25^{2}\times 0.34)+(60^{2}\times 0.12)\\\\=0+212.50+432\\\\=644.5\\$

$SD(X)=\sqrt{E(X^{2})-(E(X))^{2}}$

$=\sqrt{644.5-(15.7)^{2}}\\\\=19.950188\\\\\approx 19.95$

Thus, the standard deviation of baggage-related revenue is $19.95.

(c)

Compute the expected revenue for 120 passengers as follows:

$E(R)=n\times E(X)$

$=120\times 15.7\\\\=1884$

Thus, the expected revenue for 120 passengers is $1,884.

8 0

4 years ago

Write a slope-intercept equation for a line with the given characteristics.

Ksivusya [100]

The equation will be y=-5/9x+16/3

6 0

4 years ago

What number must you add to complete the square? x^2+26x=33

katrin2010 [14]

Answer:

Must add: 202

Step-by-step explanation:

$The \ formula \ for \ perfect \ square => (a + b)^2 = a^2 + 2ab + b^2$

a = x

2ab = 26x

2ab = 26a [ substitute a instead of x]

$b = \frac{26a}{2a}$

b= 13

So,

$(x + 13)^2 = x^2 + 26x + 169$

But given equation is :

$x^2 + 26x = 33\ => \ x^2 + 26x -33 = 0$

We have find the difference between 169 and -33 to get the number that should be added to get the perfect square.

That is , 169 - (-33) = 202

Therefore ,

$x^2 + 26x -33 + 202 \ makes \ given \ equation \ a \ perfect \ square$

8 0

3 years ago

Which is the first step in bisecting ∠MAC?

Olin [163]

Answer:

C is correct

Step-by-step explanation:

3 0

3 years ago

A bag contains 5 yellow marbles, 7 pink marbles, and 3 purple marbles. Gordon selects a marble without looking. What is the prob

eduard

5/15 x 3/15 = 1/3x 1/5 = 1/15

B is the answer.

Hope i become the brainliest

7 0

4 years ago