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2 years ago

Werner's Deli can make 2.2 sandwiches

Mathematics

1 answer:

netineya [11]2 years ago

7 0

Answer:

Hi there!

Your answer is:

66 sandwiches

Step-by-step explanation:

2.2sandwhiches per 1 min

× 30

66 sandwiches per 30 minutes!

Hopefully this helps

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Please answer this correctly without making mistakes

zheka24 [161]

Both are correct

I accidentally got rid of the other things so I now have to type 20 characters so i can actually answer it

4 0

2 years ago

Read 2 more answers

Use the given data to find the equation of the regression line. x 44 44 11 11 55 y 66 55 negative 1−1 negative 3−3 88 ModifyingA

Temka [501]

Answer:

$y=1.98 x -24.34$

Step-by-step explanation:

Assuming the following data

X: 44, 44, 11, 11, 55

Y: 66, 55, -1, -3, 88

We want to find a linear model $Y= mx +b$

For this case we need to calculate the slope with the following formula:

$m=\frac{S_{xy}}{S_{xx}}$

Where:

$S_{xy}=\sum_{i=1}^n x_i y_i -\frac{(\sum_{i=1}^n x_i)(\sum_{i=1}^n y_i)}{n}$

$S_{xx}=\sum_{i=1}^n x^2_i -\frac{(\sum_{i=1}^n x_i)^2}{n}$

So we can find the sums like this:

$\sum_{i=1}^n x_i =44+44+11+11+55=165$

$\sum_{i=1}^n y_i =66+55-1-3+88=205$

$\sum_{i=1}^n x^2_i =7139$

$\sum_{i=1}^n y^2_i =15135$

$\sum_{i=1}^n x_i y_i =10120$

With these we can find the sums:

$S_{xx}=\sum_{i=1}^n x^2_i -\frac{(\sum_{i=1}^n x_i)^2}{n}=7139-\frac{165^2}{5}=1694$

$S_{xy}=\sum_{i=1}^n x_i y_i -\frac{(\sum_{i=1}^n x_i)(\sum_{i=1}^n y_i)}{n}=10120-\frac{165*205}{5}=3355$

And the slope would be:

$m=\frac{3355}{1694}=1.98$

Nowe we can find the means for x and y like this:

$\bar x= \frac{\sum x_i}{n}=\frac{165}{5}=33$

$\bar y= \frac{\sum y_i}{n}=\frac{205}{5}=41$

And we can find the intercept using this:

$b=\bar y -m \bar x=41-(1.98*33)=-24.34$

So the line would be given by:

$y=1.98 x -24.34$

4 0

2 years ago

Could someone pls help me with this

Ksivusya [100]

Answer:

he is on 4 he is 4 away from the zero

he will land on -2 he is 2 away from 2

he will land on 5

-2 because -2 plus 2 is 0

-4, -4 absolute value is 4 so it's -4 (its original placing)

6 0

2 years ago

Come on its easy money

kirill [66]

Answer:

I don't understand your question

5 0

2 years ago

Nagaraj has a party-length sandwich that is 61 inches long and is to be cut into three pieces. The middle piece will be 4 inche

Nimfa-mama [501]

Answer: The length of the shortest piece is 16 inches

The length of the medium piece is

20 inches

The length of the longest piece is 25 inches.

Step-by-step explanation:

Total length of the party sandwich is 61 inches. This length is to be cut into three different pieces.

Let x= the size of the longest piece.

Let y = the size of the medium piece.

Let z = the size of the shortest piece.

The middle piece will be 4 inches longer than the shortest piece. This means that

y = z + 4 - - - - - - 1

The shortest piece will be 9 inches shorter than the longest piece. This means that

x = z +9 - - - - - - -2

Since total length of the party sandwich is 61 inches, it means that

x + y + z = 61 - - - - - - -3

We will substitute equation 1 and equation 2 into equation 3. It becomes

z + 9 + z + 4 + z = 61

13 + 3z = 61

3z = 61 - 13 = 48

z = 48/3 = 16

y = z + 4 = 16 + 4

y = 20

x = z + 9 = 16 + 9

x = 25

5 0

2 years ago