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elixir [45]
3 years ago
5

You randomly grab a meat and cheese from the fridge. In the fridge there was ham, turkey and beef as well as American or Swiss c

heese what is the probability you make a beef or Swiss sandwich
Mathematics
1 answer:
guapka [62]3 years ago
6 0
25% or 30% with all the options I believe
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A deli is offering two specials. The roast beef special gives a profit of $2.30 per sandwich, and the turkey special gives a pro
nikklg [1K]

Answer:

The constraints are as follows;

1) 2·x + 2·y ≤ 120

2) 3·x + 4·y ≤ 160

3) x = 2.30

4) y = 3.10

5) P = 2.3·x + 3.10

Step-by-step explanation:

The question is a word problem, with the analysis as follows;

The profit from the roast beef special per sandwich = $2.30

The profit from the turkey special per sandwich = $3.10

The number of slices of bread in the roast beef special = Two slices

The number of slices of cheese in the roast beef special = Three slices

The number of slices of bread in the turkey special = Two slices

The number of slices of cheese in the turkey special = Four slices

The number of slices of bread the deli has  = 120 slices

The number of slices of cheese the deli has = 160 slices

Let 'x' and represent the number of roast beef special and 'y' represent the number of turkey special the deli makes, then we have the constraints as follows;

For the number of slices of bread used;

2·x + 2·y ≤ 120...(1)

For the number of slices of cheese used;

3·x + 4·y ≤ 160...(2)

x = 2.30

y = 3.10

The profit 'P' is given by the following equation

P = 2.3·x + 3.10.

5 0
3 years ago
Compute the mean and variance of the following probability distribution. (Round your answers to 2 decimal places.) x P(x) 6 0.10
irinina [24]

Answer:

Mean = 16.5

Variance = 35.55

Step-by-step explanation:

 <u>          x      P(x)        x. P(x)     x²            x². P(x)</u>

          6      0.10          0.6      36            3.6

         12     0.35          4.2       144           50.4

        18     0.25           4.5       324            81

<u>         24     0.30          7.2        576         172.8</u>

                  ∑x P (x)  16.5         ∑x² P (x) 307.8

The expected value of x E[X] gives the mean where X is the discrete random variable with the given probabilities.

Mean is given by  E(X)=  ∑x P (x) =  16.5

Similarly the variance is also calculated using the expected value of X and X².

Variance is given= E(X)²-  [E(X)]²= 307.8- (16.5)²=  307.8-272.25 = 35.55

6 0
3 years ago
<img src="https://tex.z-dn.net/?f=%20%7B3%7D%5E%7B2%20%7D%20" id="TexFormula1" title=" {3}^{2 } " alt=" {3}^{2 } " align="absmid
expeople1 [14]

Answer: 9


Step-by-step explanation:

To square a number, you multiply it by itself twice.

In this case, your answer would be 3 x 3 = 9.

Hope it helps! :)

3 0
3 years ago
Jack ate 3 chocolate squares after school. Each chocolate square had a mass of 8 grams.
Lunna [17]

Answer:

24 grams

Step-by-step explanation:

Since there are three of them, I multiply by the mass, which is 8, and get 24 grams.  Hope this helps!

4 0
2 years ago
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I need help in factoring this trinomial. 10y^3-17y + 3y
Viefleur [7K]
Y(2y-3)(5y-1) check using foil
5 0
3 years ago
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