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Ksju [112]
3 years ago
8

You earn $0.85 for every cup of hot chocolate you sell how many cups do u need to sell to earn $5.25

Mathematics
1 answer:
Sauron [17]3 years ago
8 0

5.25 / .85 you would get 6.17~ but you cant sell 1/4th a cup, so you have to round up, making it 7 cups.

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A sample of n=8 scores has a mean of m=12. What is the value of ∑x for this sample
Andrews [41]

A sample of n=8 scores has a mean of m=12. What is the value of ∑x for this sample

Answer: We are given the mean of 8 scores is 12.

We are required to find the sum of these 8 observation's, \sum x

We know that:

\bar{x}=\frac{\sum x}{n}

We are given:

\bar{x} = 12, n=8

\therefore 12=\frac{\sum x}{8}

      \sum x = 12 \times 8

      \sum x=96

Hence, sum of 8 observation's, \sum x =96

7 0
3 years ago
The angle of elevation to the top of the Empire State Building in New York is found to be 11 degrees from the ground at a distan
Svetllana [295]
Draw a picture of a building and a one mile (or 5280 feet) distance to a point from the base of the building. 

The angle of elevation is given as 11° and we want the height of the building or x. 

tan(11°) = x/5280 

5280 tan(11°) = x 

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I hope my answer has come to your help. Thank you for posting your question here in Brainly.
3 0
3 years ago
Read 2 more answers
What is the period of the graph?
beks73 [17]

Answer:

3 pi.

Step-by-step explanation:

6 0
3 years ago
Leo needs to write an essay for history class. He estimates that he can write 1.5 pages per
alexandr1967 [171]
<h3>Answer:  y = 6-1.5x</h3>

========================================================

Work Shown:

x = number of hours

1.5x = number of pages written after x hours

y = 6-1.5x = number of pages left after x hours

--------------

In other words, if Leo can write at a pace of 1.5 pages per hour, and works for x hours, then he has written 1.5x pages so far. The difference of this with 6 will tell us what is left over. So the expression 6-1.5x is the amount of pages left, which is the value of y.

--------------

An example:

x = 2 so 1.5x = 1.5*2 = 3

At the 2 hour mark, Leo has written 3 pages. He has 6-1.5x = 6-1.5*2 = 6-3 = 3 pages left.

4 0
2 years ago
Use the quotient-remainder theorem with divisor equal to 2 to prove the following statement.
kupik [55]

Answer:

Please read the enswer below

Step-by-step explanation:

The quotient-remainder theorem establishes that given an integer n, there are unique integers d and r, with 0≤r<d, and such that:

n=qd+r

q: the quotient

d: the remainder

d: divisor = 2

By the quotient-remainder theorem with divisor 2, you have:

n = 2q

n = 2q + 1

Then, for both cases you have:

n^2=(2q)^2\\\\n^2=4q^2\\\\n^2=4k   (the square of an integer with divisor 2 is 4k)

with q^2=k

n=2q+1\\\\n^2=(2q+1)^2=4q^2+2q+1

n^2=2q(2q+1)+1

but 2q + 1 = n

n^2=2qn+1\\\\n^2=4k+1

where you have taken 2qn=4k   (the product 2qn is another integer)

5 0
3 years ago
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