A circle has a diameter of 12 inches. what is the area of the shaded section. use 3.14 as pi. no a,b,c,d just an exact answer thanks

Answers

Answer 1
Answer:

Answer:

Area of shaded section is 113.04

Step-by-step explanation:

Area of circle is calculated by formula A=\pi r^(2).

where 'r' is radius.

here given diameter is 12 inches .

so radius is calculated as  r=(d)/(2)=(12)/(2)=6

and value of \pi is 3.14

so, Area is ;

A=\pi r^(2)

Put value of \pi =3.14 and r=6 inches

A=3.14*6^(2)

A=3.14*36

A=113.04

Hence, area of shaded section is 113.04

Answer 2
Answer: A = pi r ^2
A = 3.14(6^2)
A= 3.14 (36)
A = 113.04


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Explain how to find which is greater: 1/4 of 12 or 1/3 of 12.

help with all its adding decimal i need it in two forms give me all the answers can you draw it in ones tenths and hundredths

Answers

1. 4.22
2. 3.11
3. 2.12
4. 1.27
5. 7.2
6. 2.61
7. 2.57
8. 2.5
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Explain how to subtract 247 from 538

Answers

Answer:

291

Step-by-step explanation:

subtract 247 from 538

In general, subtract a from b is written as b-a. 'a' is get subtracted from b

subtract 247 from 538

we need to subtract 247 from the number 538

So it can be written as

538-247=291

When we subtract 247 from 538 we got 291

subtract 247 from 538 gives us 291

You just subtract as normal:

247 - 538 =

But since 247 is smaller than 538, your answer will be negative 

247 - 538 = -291

Grade 7 : Help, anyone? Urgent!!!!!!!!

Answers

Materials = $4.25
Labor = $5.35
Sale Price = $16.99

A.)  Profit = Sale Price - (Materials + Labor)
      Profit = 16.99 - (4.25 + 5.35)
      Profit = 16.99 - (9.60)
      Profit = $7.39

      Profit / Sale Price = % Profit
      7.39 / 16.99
             or
       739 / 1699

B.)  % Profit = Profit / Sale Price × 100
      % Profit = 7.39 / 16.99 × 100
      % Profit = 0.43496 × 100
      % Profit = 43.496 %
      % Profit = 43 %

C.)  Total Sales = $324.86

       Necklaces Sold = Total Sales / Individual Sale Price
       Necklaces Sold = 324.86 / 16.99
       Necklaces Sold = 19.12 

**This question is absolutely ridiculous because either she made money from tips or someone either paid too much or too little**

       Total Profit = Necklaces Sold × [Sale Price - (Materials + Labor)]
       Total Profit = 19 × [16.99 - (4.25 + 5.35)]
       Total Profit = 19 × (7.39)
       Total Profit = $140.41

               OR

       Total Profit = 20 × (7.39)
       Total Profit = $147.80

I need to know the answer to question number 6 please and thank you

Answers

u do 1/2 x 3/1 which then u do 1 x 3 which is 3 then 2 x 1 which is 2 so it is 3/2

Chile rode her bicycle from her house directly to the library in 4 minutes. The library is 1 mile from her house.Part A: What is Chloe's speed in miles per hour? Show your work and explain you reasoning.


Part B: Chloe's trip back to her house took twice as long as her trip to the library. What was Chloe's average speed for the entire trip (from her house to the library and back to her house)? Show your work and explain your reasoning.
A.K.A : I need this now!!!!!

Answers

Answer:

Part A) Speed of Chloe's bicycle from her house to the library = 15 mph

part B) Average speed  = 10 mph

Step-by-step explanation:

Chile rode her bicycle from her house directly to the library in 4 minutes. The library is 1 mile from her house.

Distance between house and library = 1 mile

Time taken from house to library = 4 minutes

As we know, 60 minutes =  1 hour

So, 4 minutes =(1)/(15)\ h

\text{Speed} = \frac{\text{distance}}{\text{time}}

\text{Speed}=(1)/(1/15)=15\text{ mph}

Part A:

Speed of Chloe's bicycle from her house to the library = 15 mph

Part B: Chloe's trip back to her house took twice as long as her trip to the library.

  • From house to library:-

Distance =  1 mile

Time =(1)/(15)\ h

  • From library to house

Distance =  1 mile

Time =(2)/(15)\ h

\text{Average speed}=\frac{\text{Total distance}}{\text{Total time}}

\text{Average speed}=(1+1)/((1)/(15)+(2)/(15))

\text{Average speed}=(2)/((3)/(15))

Average speed  = 10 mph

Chile's speed is 60/4 * 1 = 15 mph
Chile's speed on her way back = 15/2 = 7.5 mph
Chile's average speed = (15+7.5) / 2 = 11.25 mph

At Roberts Middle school 11/30 of the books in the library were more than 50 years old. At the end of the year 1/10 of those books were given to charity.What fraction of all the books was given to charity?

Answers

Solution:
( (11)/(30) )( (1)/(10) ) =  (11)/(300)