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Rzqust [24]
3 years ago
9

Marvin Martian, Aly Alien, and Hank Human are all looking for a hidden spaceship. Their probabilities of finding the spaceship f

irst are as follows:
\text{P(Marvin wins}) = 30\%P(Marvin wins)=30%start text, P, left parenthesis, M, a, r, v, i, n, space, w, i, n, s, end text, right parenthesis, equals, 30, percent
\text{P(Aly wins}) = 0.2P(Aly wins)=0.2start text, P, left parenthesis, A, l, y, space, w, i, n, s, end text, right parenthesis, equals, 0, point, 2
\text{P(Hank wins}) = \dfrac12P(Hank wins)=
2
1
​
Mathematics
2 answers:
Andrews [41]3 years ago
7 0

From least to most likely:

Aly wins

Marvin wins

Hank win

nordsb [41]3 years ago
6 0

Answer:

From least to most likely:

Aly wins

Marvin wins

Hank win

Step-by-step explanation:

good luck bois

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a charitable organization in Lanberry is hosting a black tie benefit. Yesterday, the organization sold 55 regular tickets and 49
jenyasd209 [6]

Answer:

  • regular: $67
  • VIP: $122

Step-by-step explanation:

Let r and v represent the costs of a regular and VIP ticket, respectively. The two sales can be represented by ...

  55r +49v = 9663

  79r +84v = 15541

We can subtract 7 times the second equation from 12 times the first to eliminate the v terms.

  12(55r +49v) -7(79r +84v) = 12(9663) -7(15541)

  660r +588v -553r -588v = 115,956 -108,787 . . . . . eliminate parentheses

  107r = 7169 . . . . . . . simplify

  r = 67 . . . . . . . . . . . divide by 107

Using this value in the first equation, we have ...

  55(67) +49v = 9663

  v = 5978/49 . . . . . . . . . subtract 3685, divide by 49

  v = 122

A regular ticket costs $67; a VIP ticket costs $122.

_____

<em>Additional comment</em>

When using "elimination" to solve a system of equations, you're looking for coefficients of the same variable that are related by small factors. Preferably, one coefficient is the same as, or a small multiple of, the other. Here, 55 and 79 (the coefficients of x) are not related by an integer, or a couple of small integers. On the other hand, the y-coefficients 49 and 84 have a common factor of 7, and are in the ratio 7:12, a pair of small numbers. This is why we chose to eliminate the y-variable.

The x-variable could be eliminated using 55 and -79 as multipliers of the equations. This results in larger numbers, and more chance for error. (Errors tend to creep in when computing or copying large numbers.)

Of course, any of several machine methods could be used to solve these equations, including graphing and matrix-solving functions. Here, we tried to honor the requirement to solve by elimination.

7 0
2 years ago
Find the equation of the line shown.<br> 1<br> 0<br> -2
wolverine [178]

Answer:

your didn't give any proper point ,but i assuming the the question as

the line pass through the point (1,0,-2)

so answer is

(x-1)/a = y/b = (z+2)/c,

where a,b,c are constant

Step-by-step explanation:

4 0
2 years ago
I’ll give brainliest!
Novay_Z [31]

Answer: -1 3/4

Step-by-step explanation

just add the fractions together :)

(between the -2 and -1 1/2)

5 0
2 years ago
The U.S. Bureau of the Census predicted that the population of Pennsylvania would be about 12.7 million in 2010 and then would i
liraira [26]

Answer:

y=0. 24x + 12. 7

Step-by-step explanation:

since you start with 12. 7 and gain .24 each year, you would multiply the years by. 24 and just add the 12. 7 I hope this makes sense. also I love your profile picture :)

3 0
3 years ago
424.25 subtract 379.4
igor_vitrenko [27]
The answer is 44.85. Hope this helped! :)
7 0
3 years ago
Read 2 more answers
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