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3 years ago

Give me the work step by step to

Mathematics

2 answers:

Aleks [24]3 years ago

5 0

Hope this helps!!!!!

atroni [7]3 years ago

3 0

Well,
20/4=5,
so,
5x5=25.
There are 25 cats.

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Apply the laws of exponents, calculate the result and express the result in scientific notation, and as a decimal:

DochEvi [55]

We are given

$\frac{(4.1\times 10^{3})(2.8\times 10^{-7})}{(3.1\times 10^{-5})}$

We can move like terms altogether

$\frac{(4.1\times 10^{3})(2.8\times 10^{-7})}{(3.1\times 10^{-5})}=\frac{4.1\times 2.8}{3.1}\times \frac{10^{3}\times 10^{-7}}{10^{-5}}$

now, we can use property of exponent

$a^m\times a^n=a^{m+n}$

$=\frac{4.1\times 2.8}{3.1}\times \frac{10^{3-7}}{10^{-5}}$

We can use another exponent property

$\frac{a^m}{a^n} =a^{m-n}$

so, we get

$=\frac{4.1\times 2.8}{3.1}\times 10^{3-7+5}$

$=\frac{4.1\times 2.8}{3.1}\times 10^{1}$

$=3.70323\times 10^{1}$

So, the result in scientific notation is

$=3.70323\times 10^{1}$ ..........Answer

So, the result as a decimal is

$=37.0323$ .............Answer

8 0

4 years ago

How can I find the length CE

Lilit [14]

Answer:

<h2>you're answer would be 10</h2>

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3 years ago

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Decrease 20g by 90% I don’t get this

Hitman42 [59]

Answer:

Step-by-step explanation:

If you wanna decrease the number 10 by 90%, It's just 9. You simply need to multiply a/100 at the number you try to decrease by a%.

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3 years ago

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There are a total of 63 bikes at a sports shop. If 18 bikes are blue, what is the ratio of blue bikes to black bikes?

prohojiy [21]

Answer:

45 to 18 it's easy

Step-by-step explanation:

subtract 18 from 63 and there is your ratio

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4 years ago

What is the answer to this question (6+8 divided by 4+3+2^3)

kicyunya [14]

I got 19 as an answer....... Order of operations

P - Parenthesis
E - Exponents
M - Multiplication
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A - Addition
S -Subtraction

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3 years ago