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Bogdan [553]
3 years ago
7

What is the work to find out the awnser to find out how many centimeters in a foot

Mathematics
1 answer:
igor_vitrenko [27]3 years ago
4 0
To find how many cm are in a ft, you have to use the method of unit rate:

so we know that 12 in. equals a ft. so,

1 ft
------
12 in.

and 2.25 cm equals an in. so,

1 in.
-------
2.54cm

then we put the rates together and get:

1ft          1 in.
----   X   -------................we cancel out the in. units and get:
12 in.    2.54 cm


Solve and get 1 ft = 30.48 cm

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Find the value of this fraction computation: 6(1/2 + 2/3 + 3/4) Show the steps.
Marta_Voda [28]

6(1/2 + 2/3 + 3/4)

= 6(1/2) + 6(2/3) + 6(3/4)

= 3 + 4 + 4 1/2

= 11 1/2

Answer

11 1/2  (23/2 or 11.5)


7 0
3 years ago
What is 3 tenths greater than 80%
elena-14-01-66 [18.8K]

we know that


3 tenths is equal to

\frac{3}{10} =0.30


80% is equal to

\frac{80}{100} =0.80

so


3 tenths greater than80% is equal to add

0.30+0.80=1.10

therefore


the answer is

1.10

6 0
3 years ago
Read 2 more answers
Brianna can buy 14 pencils for $1.50 at the school store. At that rate, about how much would 100 pencils cost?
LuckyWell [14K]

Answer:

we conclude that the cost of 100 pencils = $11

Step-by-step explanation:

Brianna can buy 14 pencils for $1.50 at the school store.

so

unit rate =  $1.50 /  14 pencils

              = 0.11 USD per pencil

Thus,

The cost of 1 pencil =  $0.11

The cost of 100 pencils = $0.11 × 100

                                       = $11

Therefore, we conclude that the cost of 100 pencils = $11

5 0
3 years ago
Which could be used to solve this equation?
Usimov [2.4K]

Answer:

Subtract 3 and one-fifth from both sides of the equation

Step-by-step explanation:

Well to find n you gotta separate it.

3 1/5 + n = 9

-3 1/5

n = 5.8

<em>Thus,</em>

<em>to seperate it you subtract 3 1/5 from both sides.</em>

5 0
3 years ago
There are 100 bolts and 2 wingnuts in each bookcase kit. What is the unit rate in bolts per wingnut?
gayaneshka [121]
Since they are asking for the unit rate in bolts per wing nut, you can think of it as bolts per ONE wing nut. 

To figure that out, you can divide 100 bolts by 2 wing nuts to get 50 bolts per wing nut. 
3 0
3 years ago
Read 2 more answers
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