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2 years ago

What is the mean of the data set below? 15, 5, 16, 9, 14, 3, 4, 18, 10, 4

Mathematics

1 answer:

motikmotik2 years ago

7 0

Answer:

Mean = Sum of Values ÷ Total number of Values

Step-by-step explanation:

= 15+5+16+9+14+3+4+18+10+4 ÷ 10

= 98 ÷ 10

= 9.8 (Decimal point moves 1 place to the left when divided by 10)

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Jim had some dimes, quarters, and nickels. First, he counted only the dimes and quarters and found that he had 9 coins. Then, he

Olegator [25]

Answer:

$1.90

Step-by-step explanation:

Represent the numbers of nickels, dimes and quarters by n, d and q.

Then: d + q = 9, or q = 9 - d.

Also, n + d = 10

Lastly, n + d + q = 15.

Let's substitute 9 - d for q in the equation immediately above:

n + d + (9 - d) = 15, or n + 9 = 15. Then n must be 6.

In summary, Jim has 6 nickels, (10 - 6) dimes and (9 - 4) quarters, or:

6 nickels, 4 dimes and 5 quarters

Thus, he has 5($0.05) + 4($0.10) + 5($0.25), or

$0.25 + $0.40 + $1.25, or $1.90

7 0

3 years ago

Need hep teaching my daughter. Janet went to Resturant and left 20% tip. If tip was $3.20 how much was meal? Solve with equation

Stels [109]

Answer:

The meal was $16.00.

Step-by-step explanation:

since the equation for finding the tip is: decimal of percent times total bill, what you want to do is isolate the bill. you do this by dividing both sides by percent and your equation is total cost = tip/percent

let's say our total equation is x.

x=3.20/0.2

x=16

Now check your work.

6 0

3 years ago

Find the area of the rug. DO NOT ROUND. what is the area?

Neporo4naja [7]

Answer:

28.26 ft²

Explanation:

$\sf area \ of \ circle = \pi r^2$

Here given diameter: 6 ft

radius: d/2 = 6/2 = 3 ft

========

area of rug:

$\dashrightarrow \ \pi (3)^2$

$\dashrightarrow \ 9\pi$

$\dashrightarrow \ 9(3.14)$

$\dashrightarrow \ 28.26 \ ft^2$

7 0

2 years ago

Read 2 more answers

What is the length of AC? ОЗft o4ft 9 ft 09 ft o18 ft

Nezavi [6.7K]

Answer:

18 ft

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

If Upper A equals StartSet x | x is an even integer EndSet commaA={x | x is an even integer}, Upper B equals StartSet x | x is a

White raven [17]

Answer:

C ∪ D = {2, 3, 4, 5, 8, 9, 10, 11}

Step-by-step explanation:

A={x | x is an even integer}

B={x | x is an odd integer},

C={2, 3, 4, 5},

D={8, 9, 10, 11}.

A union of two or more sets is the collection of the members of the sets in a set without repeating any element.

Given sets C and D above, the union of the two sets is the set:

C ∪ D = {2, 3, 4, 5, 8, 9, 10, 11}

Note: The Intersection is the collection of sets that are common to C and D. in this case no element is common, therefore the intersection is a Null Set.

8 0

3 years ago