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NARA [144]
3 years ago
14

Jabari wants to save $66. He earns

Mathematics
1 answer:
earnstyle [38]3 years ago
5 0

Answer:

n = 7 1/3 weeks

Step-by-step explanation:

Amount Jabari wants to save = $66

Amount he earns per week = $9

Hours worked per week = 2 hours

How many weeks will it take him to save $66?

Let

n = number of weeks will it take him to save $66

66 = 9n

n = 66/9

n = 7 3/9

n = 7 1/3 weeks

Or

n = 7.33 weeks

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The numbers of regular season wins for 10 football teams in a given season are given below. Determine the range, mean, variance,
tensa zangetsu [6.8K]

We have the following data set:

2,7,15,3,12,9,15,8,3,10

The range is the difference between the highest and lowest values in the set, to find the range, order the data set from least to greatest.

2,3,3,7,8,9,10,12,15,15

Then,

\begin{gathered} \text{Range}=15-2 \\ \text{Range}=13 \end{gathered}

Mean is represented by the following expression:

\text{Mean}=\frac{\text{Sum of all data points}}{Number\text{ of data po}ints}\text{Mean}=\frac{84}{10}=8.4

Population variance formula looks like this:

\begin{gathered} \sigma^2=\frac{\sum^{}_{}(x-\mu)^2}{N} \\ \text{where,} \\ \sigma^2=\text{population variance} \\ \sum ^{}_{}=addition\text{ of} \\ x=\text{each value} \\ \mu=population\text{ mean} \\ N=\text{ number of values in the population} \end{gathered}

Then, substituting:

\begin{gathered} \sigma^2=\frac{(2-14)^2+(3-14)^2+\cdots+(15-14)^2}{10} \\ \sigma^2=20.44 \end{gathered}

For the standard deviation:

\begin{gathered} s=\sqrt[]{\frac{\sum ^{}_{}(x-\mu)^2}{N}} \\ s=4.521 \end{gathered}

5 0
2 years ago
What happens to the arrangement of water molecules as ice melts?
Fantom [35]
I think its either b or c
6 0
4 years ago
Read 2 more answers
PLEASE HELP ME FOR BRAINLIEST!!!!
vekshin1

Answer:

A=52.8 miles (approximately)

Step-by-step explanation:

We can assume that this triangle is not a right angle, therefore we cannot use Pythagorean theorem.  Let's use the Law of Sines:

\frac{sin(A)}{a}=\frac{sin(B)}{b}=\frac{sin(C)}{c}


Where A is unknown, a=28 miles, b=32 miles, B=87°

Therefore by law of sines we have:

\frac{sin(A)}{28} =\frac{sin(87)}{32} \\

By multiplying 28 to Isolate sin(A) we have:

sin(A)=\frac{28*sin(87)}{32}

To cancel out sine on the right, we must multiply both by the inverse sine and so:

A=sin^{-1}(\frac{28*sin(87)}{32})=52.7658\\ \\A=52.8mi

8 0
3 years ago
If I have 85 dollars and I have to split it between 7 people, what is the most I can spend on each person?
pashok25 [27]

Each person will get 12 dollars

Step-by-step explanation:

Given

Total amount = 85 dollars

Total people = 7

As it has to be divided among 7 people, the total amount will be divided by 7

So,

Each person will get:

=\frac{85}{7}\\= 12.14

Rounding off to nearest whole number

12 dollars each with 1 dollar remaining

Hence,

Each person will get 12 dollars

Keywords: Dollars, Fractions

Learn more about fractions at:

  • brainly.com/question/4522984
  • brainly.com/question/4550858

#LearnwithBrainly

4 0
3 years ago
The area of a circle is
Zanzabum

Answer:

19,25

Step-by-step explanation:

chia hi

6 0
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