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SCORPION-xisa [38]
3 years ago
14

julis needs 2 pounds of beef to make 20 servings of his famouse chili if 5 more people decide to attent the party how many pound

s of beef will julius need to make enough chili
Mathematics
1 answer:
MariettaO [177]3 years ago
5 0
He will need a 1/4 pound more 
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The waking time of a student under common conditions is normally distributed with mean of 30 hours and a standard deviation of 5
Elina [12.6K]

Answer:

If the walking time is greater than or equal to 38.225 hours, than it exceeds 95% probability that is lie in top 5%.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 30 hours

Standard Deviation, σ = 5 hours

We are given that the distribution of waking time is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

We have to find the value of x such that the probability is 0.95

P( X < x) = P( z < \displaystyle\frac{x - 30}{5})=0.95  

Calculation the value from standard normal z table, we have,  

\displaystyle\frac{x - 30}{5} = 1.645\\\\x = 38.225  

Thus, if the walking time is greater than or equal to 38.225 hours, than it exceeds 95% probability that is lie in top 5%.

4 0
3 years ago
5-x&lt;8;x=-3 how do you solve that?
Sergio [31]
Make sure you substitute x for 3

The equation would be:

5-3<8

Subtract 3

2<8

The statement is true
8 0
3 years ago
Area &amp; perimeter of rectangles word problems
nordsb [41]

Answer:

  A.  6 m by 6 m

Step-by-step explanation:

You can try the different choices to see which has the largest area. Of course, the area is the product of the dimensions:

  6 m × 6 m = 36 m² . . . . largest area

  10 m × 2 m = 20 m²

  8 m × 4 m = 32 m²

__

The largest area is that of a square, 6 m by 6 m.   (choice A)

3 0
3 years ago
Sally is selling two types of seashells by the seashore. She is selling large and small shells. She sells small shells for 2 dol
Ostrovityanka [42]

Answer:

The answer is A

Step-by-step explanation:

If you plug in the numbers it looks like this:

(A)  5(2) + 10(5) = 60

(B)  10(2) + 5(5) = 45

(C) 7(2) + 8(5) = 54

(D)  8(2) + 7(5)

so a is the only one that equals 60

4 0
3 years ago
Violet made cookies for the bake sale. 7/10 of the cookies are chocolate chip. 3/4 of the remaining cookies are sugar. What frac
FromTheMoon [43]
We know that 7/10 of the cookies are chocolate chip, so that means there are 3/10 of the cookies left.
We now want to find what 3/4 of 3/10 is.
We can do this by multiplying both fractions
3/4x3/10 (we just multiply across) to get 9/40.
We cannot simplify this answer, so our final answer is 9/40 of the cookies are sugar cookies.
3 0
2 years ago
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