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coldgirl [10]
3 years ago
8

The radius of a circle is 7 centimeters. What is the circle's area? use 3.14 for pi

Mathematics
1 answer:
myrzilka [38]3 years ago
8 0

Answer:

153.86‬ cm^2

or

154 cm^2 (if you round it up)

Things to keep in mind:

    R - Radius

    A - Area

    Pi = 3.14

Step-by-step explanation:

A = Pi * R^2 = 3.14 * 7^2 = 3.14 * 49 = 153.86‬ (cm^2)

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Write <br> 22<br> 3<br> as a mixed number. <br> Give your answer in its simplest form.
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Many us employess received a 3% raise in 2012 suppose an employee made 47,000 in 2011 and received a 3% raise. What did she make
WITCHER [35]
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3% is 3/100  = 0.03

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Now we just add
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Another way to do this is 

(47000)(1+0.03) = 48410

you would use (1+0.03) which tells you she increased in pay. 
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3 years ago
Two less than three times a number is equal to 19. What is the number?
EastWind [94]

The best way to approach a word problem like this

is to break it down into pieces, so we can understand it fully.

In this problem, we have a number, which we don't know.

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A common mistake is for students to put 2 - 3n.

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Solving from here, we add 2 to both sides to get 3n = 21.

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8 0
3 years ago
19k - 13k = 18<br> Solve for k
d1i1m1o1n [39]

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Hope this will help....

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