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Likurg_2 [28]
3 years ago
6

Katherine is a personal chef. She charges $115 per four-person meal. Her monthly expenses are $3,150. How many four-person meals

can she sell in order to make a profit of at least $1,900?
Mathematics
1 answer:
Rama09 [41]3 years ago
5 0

Answer:

44 meals

I really dont know what to say for the explanation but their telling me to write something so... hi

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A soft drink manufacturer wishes to know how many soft drinks adults drink each week. They want to construct a 85% confidence in
andreev551 [17]

Answer: 547

Step-by-step explanation: The margin of error formulae is given below as

Margin of error = critical value ×(σ/√n)

Where σ = standard deviation and n is the sample size.

From our question, margin of error = 0.08

Variance is 1.691,

hence σ = √variance = √1.691

= 1.3.

We will be using a z test for our critical value this is because a soft drink manufacturer will always produce drinks more than 30 in numbers.

The critical value for a 85% confidence interval is 1.44.

Hence critical value is 1.44.

By substituting the parameters, we have that

0.08 = 1.44 × 1.3/ √n

0.08 = 1.873/ √n

By cross multiplying

0.08 × √n = 1.873

√n = 1.873/ 0.08

√n = 23.41

n = (23.41)²

n = 547.

7 0
3 years ago
Please help me I need help today thank you and please show work
scoundrel [369]

17) x-8=11

18) 9-x=5

19) x+6=7

20) x+(-4)=-18

Step-by-step explanation:

17) The difference between a number and 8 is 11

Let number = x

then the equation will be:

x-8=11

Solving:

x-8=11

x=11+8\\x=19

18) Nine less than a number is five.

Let number = x

then the equation will be:

9-x=5

Solving:

9-x=5\\-x=5-9\\-x=-4\\x=4

19) Seven is equal to a number plus 6

Let number = x

then the equation will be:

x+6=7

Solving:

x+6=7\\x=7-6\\x=1

20) The sum of a number and -4 is -18

Let number = x

then the equation will be:

x+(-4)=-18

solving:

x+(-4)=-18\\x-4=-18\\x=-18+4\\x=-14

Keywords: Algebraic Expressions

Learn more about Algebraic Expressions at:

  • brainly.com/question/1617787
  • brainly.com/question/1600376
  • brainly.com/question/9720317

#learnwithBrainly

5 0
3 years ago
What is the value for x in 5x+4>24
Allisa [31]

Answer:

x>4

Step-by-step explanation:

Do 5x>24-4 subtract... the u have 5x>20 so you divide both sides by 5 and u get 4

3 0
3 years ago
Read 2 more answers
Please help!!!!!<br> One third of a number x is no more than 15.
Nitella [24]

Answer:

1/3x is less than or equal to 15

Step-by-step explanation:

assuming you want an equation?

1/3x is less than or equal to 15

its this sign < with line under (srry i don't have the symbol)

7 0
3 years ago
What is 8*9-2*5 pls help​
masha68 [24]

Answer:

62

Step-by-step explanation:

using the order of PEMDAS, you solve 8*9 and 2*5 first, then subtract them. so it will become 72 - 10, which is 62

hope this helps!

6 0
3 years ago
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