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vova2212 [387]
3 years ago
15

At Gwen’s bakery over the course of a year she sold 78 cakes for $78 a cake. At the end of the year she determined that for each

cake she sold she spent 1/6 of the sale price on ingredients. How much money did she spend on ingredients for cakes?
Mathematics
1 answer:
densk [106]3 years ago
6 0

Answer:

She spend 1014 dollar on ingredients

Step-by-step explanation:

First we would need to find the total money so that we can divide 1/6 of the money she spend on ingredient so it go like this:

78*78=$6084

6084/6=1014.

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The dataset Restaurant Tips contains data recorded from 157 restaurant bills at a bistro in New York over a two week period and
xz_007 [3.2K]

Answer: ($3.532, $4.166)

Step-by-step explanation:

Given : Significance level : \alpha: 1-0.90=0.10

Critical value : z_{\alpha/2}=1.645

Sample size : n= 157

Sample mean : \overline{x}=\$\ 3.849

Standard deviation : \sigma= \$\ 2.421

The confidence interval for population mean is given by :_

\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}

\text{i.e. }\$\ 3.849\pm (1.64)\dfrac{2.421}{\sqrt{157}}\\\\\approx\$\ 3.849\pm0.317\\\\=(\$\ 3.849-0.317,\$\ 3.849+0.317)=(\$\ 3.532,\$\ 4.166)

Hence, the 0% confidence interval for the average tip given at this restaurant = ($3.532, $4.166)

5 0
3 years ago
A. Identify which of the following points: (2,-5),(4,1),(3, 3),(6,3) are solutions of the linear equation: 2x - y = Graph each p
ohaa [14]

Answer: It will be (2,-5) and (6,3) because they are one the slope line

Step-by-step explanation:

Hope is Helped

4 0
3 years ago
3. Round off the following numbers to three decimal places:<br>a) 31,1104<br>b) 0,10989​
Luba_88 [7]
A) 31.110
B) 0.110

When rounding to three decimal places, you consider if the number to the right of the third decimal place is less than or greater than 5. If it's less than 5, then the digit in the third decimal place stays the same. If it is greater than or equal to 5, then you round the digit in the third decimal place up by one.
4 0
3 years ago
Read 2 more answers
Can someone help me with these three? You can get 30 points
lyudmila [28]

Answer:

1 is 4

2 is 3

3 is 6

Step-by-step explanation:

tofu tu ugh uh runs

4 0
3 years ago
Write a system of equations to describe the situation below, solve using any method, and Fill in the blanks.
Tatiana [17]

Answer:

1 haircut = 47 dollars

1 colouring = 98 dollars

Step-by-step explanation:

Let x be equal to the cost of 1 haircut.

Let y be equal to the cost of 1 colouring treatment.

<u>1) Form equations</u>

Equation 1: 3 haircuts + 1 colour = 239 dollars

⇒ 3x+y=239

Equation 2: 2 haircuts + 1 colour = 192 dollars

⇒ 2x+y=192

<u>2) Solve the system of equations</u>

Subtract equation 2 from equation 1 to cancel out y (elimination)

- 3x+y=239\\2x+y=192

⇒ 3x-2x+y-y=239-192\\x=47

Therefore, Natalie charges 47 dollars for 1 haircut.

Plug x back into one of the equations to solve for y

2(47)+y=192\\94+y=192

Subtract both sides by 94

94+y-94=192-94\\y=98

Therefore, Natalie charges 98 dollars for 1 colouring treatment.

I hope this helps!

4 0
3 years ago
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