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exis [7]
3 years ago
13

The circumference of a circle is 3pi in. What is the area of the circle?

Mathematics
1 answer:
Nezavi [6.7K]3 years ago
3 0

Answer:

A = 2.25 pi in^2

Step-by-step explanation:

The circumference of a circle is 3pi

so d = 3

Area of circle = pi r^2

r = 3/2 = 1.5

A = (1.5)^2 pi

A = 2.25 pi in^2

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nataly862011 [7]
It is 3.75 for the answer



8 0
3 years ago
Read 2 more answers
What is the estimate answer and the exact answer of 17/10 ÷2 4/5
OLEGan [10]
Both 17/10 and 2 4/5 should be rounded up in preparation for this estimation.

17/10 is close to 2 and 2 4/5 is close to 3.  Thus, your estimated answer should be
                     2/3, or approx. 0.6666....

Exact answer:    divide 17/10 by 14/5.  LCD is 10, so convert 14/5 to 28/10.

Now divide 17/10 by 28/10.  Answer:  17/28 = approx.   =  0.607 approx.

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8 0
3 years ago
How to solve this task 4×-2+1=3×+5
just olya [345]
4x-2+1=3x+5

Subtract 3x from both sides

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x-1=5

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8 0
3 years ago
Wesley has 480 stamps in his collection. He puts these stamps into display cases. Each display
disa [49]

Answer:

Wesley needs 32 displays for his stamp collection

Step-by-step explanation:

480 stamps in total.

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6 0
3 years ago
4) Adult tickets for the evening show at XD Theater are $11 and children's tickets are $Belf the theater seats 250 people, how m
kozerog [31]

Omitted value: The price of children ticket was omitted in the question, so i used $8 to solve. You can input the correct value and solve the same way following the steps.

Answer: 100 adult tickets  must be sold.

Step-by-step explanation:

step 1

let  x represent Adults

AND y represent children

Since the theater seats 250 people we have that

x+y = 250..... equation 1

Also price for Adult ticket = $11

and  price children ticket =$8

With total sales at $2,300, we have that

11x + 8y= 2300----- equation 2

Step 2

Making y subject in equation 1

' x+y = 250

y= 250-x

Putting y= 250- x in equation 2

11x + 8(250-x)= 2300

11x +2000-8x= 2300

11x -8x = 2300-2000

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x 300/3

x= 100.

To find y

 x+y = 250

100+y=250

y=250-100

y=150

Therefore 100 adult tickets and 150 children tickets must be sold to get a total sales of $2,300

5 0
3 years ago
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