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Naya [18.7K]
3 years ago
10

How old is the earth​

Mathematics
1 answer:
lyudmila [28]3 years ago
3 0

Answer:

4.543 billion years

Step-by-step explanation:

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At the popular restaurant Fire Wok, 55%, percent of guests order the signature dish.
ANTONII [103]

55/100 or 11/20

Since 55% is 55/100 as a fraction. then at it's simplest form it's 11/20.

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3 years ago
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An arc is 6.5 cm long and it subtends a central angle of 45 degrees. Find the radius of the circle.
Orlov [11]
Arc length = radius * central angle (measured in radians)
There are <span> <span> <span> 57.2957795131 </span> </span> </span> degrees per radian so
45 degrees = (45 / <span> <span> <span> 57.2957795131) = </span></span></span> <span> <span> <span> 0.7853981634 </span> </span> </span> radians<span><span> </span> </span>
radius = arc length / central angle (radians)
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http://www.1728.org/radians.htm

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3 years ago
Mason and Laney run laps. The ratio of the number of laps Mason ran to the number Laney ran was 2:3.
3241004551 [841]

Using proportions, it is found that Mason ran 620 meters.

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

Considering the ratio, the <em>rule of three</em> is given as follows:

2 laps for Mason - 3 laps for Laney.

n meters for Mason - 930 meters for Mason.

Applying cross multiplication:

3n = 930 x 2

n = 930 x 2/3

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Mason ran 620 meters.

More can be learned about proportions at brainly.com/question/24372153

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3 0
2 years ago
The average price of a movie ticket in the United States from 1980 to 2000 can be modeled by the expression, 2.75+0.10x, where x
MissTica

Answer:

<h2>$4.7</h2>

Step-by-step explanation:

step one:

Let the cost be y

to solve for the cost of  a movie ticket, we need to solve the expression

y=2.75+0.10x

step two:

given that x is the number of years between 1980-2000

the number of years is 20years

put x= 20 in the expression for the cost we have

y=2.75+0.10(20)

y=2.7+2

y=$4.7

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3 years ago
Why can it help to line up the decimal points before comparing and ordering numbers with decimals
aliina [53]
So you don't loose your place
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3 years ago
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