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Viktor [21]
2 years ago
12

Someone help asap please.

Mathematics
2 answers:
Lerok [7]2 years ago
6 0
<h2>Repeating Decimal to Fraction</h2>

Note: "..." is the repeating sign I'm using.

Answer: 2/9

<h3>Steps</h3>

Let X equal the decimal number  

Equation 1:

X = 0.2...

With 1 digit in the repeating decimal group,

create a second equation by multiplying

both sides by 10

X * 10 = 10X and 0.2...* 10 = 2.2...

Equation 2:

10X = 2.2...

Subtract equation 1 from equation 2

10X = 2.2...  -   X = 0.2...

We get

9X = 2

In conclusion, 0.2... =   2/9

<h2>Repeating Decimal to Mixed Number</h2>

This decimal cannot be a mixed number because it has no number in the one's, ten's, or hundred's place.

zmey [24]2 years ago
4 0

Answer:

2/9= 0.222222222........

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The time between a lighting flash and the following thunderclap may be used to estimate, in kilometers, how far away a storm is.
Talja [164]
D=t/3

12=t/3
×3   ×3
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36=t

So the answer is D.) 36 kilometers
5 0
2 years ago
Sand for use on icy roads is stored in a conical pile 14.2 m high and with a base diameter of 34.4 m calculate the volume of the
sammy [17]

Answer:

1. The volume of the pile is 4,399.7719 m^3

2. The number of sanders to be filled from a pile is 638

Step-by-step explanation:

Here, we firstly would calculate the volume of the pile

Mathematically, that will be;

V = 1/3 * pi * r^2 * h

from the question, h = 14.2

Mathematically, r = d/2

r = 34.4/2 = 17.2 m

So the volume will be:

V = 1/3 * 3.142 * 17.2^2 * 14.2

V = 4,399.7719 m^3

To find the number of sanders to be filled,

we simply divide the volume obtained by the volume a sander can take

That will be;

4,399.7719/6.9

= 637.6 which is 638

4 0
2 years ago
Haley saves $2 out of every $5 that she makes babysitting. If Haley saved $10, how much did she make babysitting?
Kitty [74]

Answer:

25$

Step-by-step explanation:

5=2

10=4

15=6

20=8

25=10

4 0
3 years ago
Read 2 more answers
I rectangular prism is completely packed with 90 cubes of edge length 1/2 inch without any gap or out or overlap which of the fo
Katarina [22]
45 multiply 1/2 and 90 put it in the calculator 90 times 0.5
8 0
3 years ago
Read 2 more answers
Frank has devised a formula for his catering business that calculates the number of meatballs he needs to prepare.
timofeeve [1]
Just plug in the numbers into the equation.

m = 4a + 2c

a = adults
c = children
m = meatballs

The information given says there are 25 adults and 5 children. So now:

a = 25
and
c = 5
in the equation m = 4a + 2c


Now plug in the values. 
m = 4(25) + 2(5)
m = 100 + 10
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This means that 110 meatballs are required for 25 adults and 5 children. 
8 0
3 years ago
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