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3 years ago

What is the diamiter of 37.68

Mathematics

1 answer:

Sphinxa [80]3 years ago

7 0

Answer:

The diameter is 12

Step-by-step explanation:

37.68/3.14 = D π/ 3.14

D = 12 The diameter equals twelve.

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Please help I need help on this

natulia [17]

Answer: the answer is 120 for it the area but that is not on the answer list.

Step-by-step explanation:

7 0

3 years ago

How many inches is each slice of pizza?

mariarad [96]

Hey!

First, let's find the area. The formula for finding area of a circle is: π · r²

Radius is ½ of the diameter. Divide the diameter by 2 to get the radius.

d = 18

18 ÷ 2 = 9

r = 9

r² = 9 × 9 = 81

The area of the whole pizza is 81π. There are 10 slices. Divide the area of the whole pizza by 10 to find the area of 1 slice.

81π ÷ 10 = 8.1π

<em>That means each slice is 8.1π inches²</em>

4 0

3 years ago

Read 2 more answers

During a 60 minute television program, 25% of the time is used for commercials and 5% of the time is used for the opening and cl

aksik [14]

Answer:

42 minutes

Explanation:

The total amount of anything expressed in percentage is 100%.

The reason for this is that per cent means per hundred.

So, 100% is

100

, which is a whole.

Moving to the question, a total of 25% + 5% = 30% of the time is used up by commercials and credits.

The time left for the program is 100% - 30% = 70%.

This is 70% of 60 minutes or

100

Step-by-step explanation:

3 0

3 years ago

Raíz cuadrada de 324

klasskru [66]

Answer:

qie

Step-by-step explanation:

hzhsnshsijxnejeikrnneke

3 0

3 years ago

In a certain year, brand A of heart-rate watch cost $39.99 and brand B cost $59.99. A nonprofit community health organizatio

Oksi-84 [34.3K]

Answer:

Brand A = 21 heart-rate watches.

Brand B = 13 heart-rate watches.

Step-by-step explanation:

Let A be the number of Brand A heart watches and B be the number of Brand B heart watches.

We have been given that a nonprofit community health organization purchased 34 heart-rate watches for use at a wellness center.

We can represent this information in an equation as:

$A+B=34...(1)$

We have been given that in a certain year, brand A of heart-rate watch cost $39.99 and brand B cost $59.99 and the organization spent $1619.66 for the watches.

We can represent this information in an equation as:

$39.99*A+59.99*B=1619.66...(2)$

We will use substitution method to solve our system of equations.

From equation (1) we will get,

$A=34-B$

Substituting $A=34-B$ in equation(2) we will get,

$39.99*(34-B)+59.99*B=1619.66$

$1359.66-39.99*B+59.99*B=1619.66$

$-39.99*B+59.99*B=1619.66-1359.66$

$20*B=260$

$B=\frac{260}{20}$

$B=13$

Therefore, the organisation purchased 13 heart-rate watches of brand B.

Now let us substitute B=13 in equation (1).

$A+13=34$

$A+13-13=34-13$

$A=21$

Therefore, the organisation purchased 21 heart-rate watches of brand A.

8 0

3 years ago