All categories

2 years ago

Hellllpme!!!!! ASAP!

Mathematics

2 answers:

Vikki [24]2 years ago

6 0

Answer:

Step-by-step explanation:

This notation says that x+x+x+x+37=69

This can be simplified to say 4x+37=69

leva [86]2 years ago

6 0

Answer:

Step-by-step explanation:

69-37=32.

32÷4=8

69=4x+37

You might be interested in

ITS URGENT find the missing length of the triangle.

Serggg [28]

You can find the answer on quizzez i promise you

7 0

2 years ago

A cell phone company charges a flat Rate of 4.75 per month with an additional charge .19 per minute. How many minutes did alexan

mote1985 [20]

Answer:The number of minutes that Alexandra talked on her cell phone is 120

Step-by-step explanation:

A cell phone company charges a flat rate of 4.75 per month with an additional charge 0.19 per minute. Assuming the total number of minutes of call made for the month is represented by x and the total cost of x minutes of call is y, then

y = 0.19x + 4.75

To determine how many minutes that Alexandra talked on her cell phone if his monthly bill was 27.55, we would substitute y = 27.55 into the equation. It becomes

27.55 = 0.19x + 4.75

0.19x = 27.55 - 4.75 = 22.8

x = 22.8/0.19 = 120 minutes.

8 0

3 years ago

Captain Liz is going to load her cruise ship with bags of sugar. She has room for 19 bags of sugar. She has allotted for 121 pou

Bad White [126]

: 1) If you were going to solve these, you would set them up like this. s+p=19 7s+10p=121 among the choices, b is the only one that is equivalent to one of these equations 2) The problem looks a little confusing. If the price is per box then they easily make $275. 8b+9h=53 20*8b+30*9h=275 If it's per batch, the answer is B. 3. x^2+y^2=16 y=x+4 solve the first equation for y y=√16-x^2 x+4=√16-x^2 (x+4)^2=16-x^2 x^2+8x+16=16-x^2 2x^2+8x=0 2x(x+4)=0 x=0 or x=-4 (be carefull i copyed and pasted the answer)

7 0

3 years ago

most reasonable metric unit for a glass containing 250 units of liquid. Choose from L, mL, kg, g, and mg

sineoko [7]

It most probably "mL"

6 0

2 years ago

Phoenix is a hub for a large airline. Suppose that on a particular day, 8000 passengers arrived in Phoenix on this airline. Phoe

Afina-wow [57]

Answer:

Step-by-step explanation:

Hello!

In a day a total of n= 8000 passangers arrived to Phoenix.

1400 of these passangers final destination was Phoenix. (A)

The remaining 6600 passangers were all taking connection flights to other cities. (B)

Due to several flights being late, 430 connecting passengers missed their connecting flight and were delayed in Phoenix. (C)

Of these 430 delayed passengers, 75 were delayed overnight. (D)

If there was one passenger chosend at random:

a) You have to calculate the probability of this passegners final destination to be Phoenix. Symbolically: P(A)

To calculate this probability you have to divide the number of passengers whose final destination was Phoenix by the total number of pasengers:

$P(A)= \frac{1400}{8000} = 0.175$

b) The passangers whose final destination was not phoenix are those taking connection flights, the probability of this event, called B, is calculated dividing the total of connecting passengers by the total of passengers:

$P(B)= \frac{6600}{8000}= 0.825$

c) You need to calculate the probability of "the passenger was connecting and missed the connecting flight"

The amount of passengers that fit this situation are 430 of 8000, so the probability is calculated as:

$P(C)= \frac{430}{8000} = 0.05375 ~= 0.054$

d) Of all 6600 connecting passengers, only 430 missend the flight wich means that 6170 took the connecting flight, the probability of this event "E" is

$P(E)= \frac{6170}{8000}= 0.771$

e) The passenger either had Phoenix as a final destination or was delayed overnight, symbolically:

P(A∪D) = P(A) + P(D) - P(A∩D)

The probability of the passenger being delayed overnight is:

$P(D)= \frac{75}{8000} = 0.009$

The events "A" and "D" are mutually exclusive, this means that they cannot occur both at the same time, so their intersection is void, P(A∩D)= ∅

Then

P(A∪D) = P(A) + P(D) = 0.175 + 0.009= 0.184

f) If using the same data we turn this event into a binomial variable were our success will be "the passenger missed his flight and was delayed overnight" with probability p=0.009 and the sample n= 50

Let's say that the airline should be worried if more than half of the surveyed passengers were delayed overnight then:

P(X>25)= 1 - P(X ≤ 25) = 1 - 0.999999 = 0.000001

The probability of most of the surveyed passenger were delayed overnight is too low so the company should not be worried.

I hope it helps!

5 0

2 years ago