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Eduardwww [97]
3 years ago
9

39 is 5% of what number

Mathematics
1 answer:
hjlf3 years ago
4 0
To find this out:
Turn the percent into a fraction and cross multiply!

5%=5/100

5 39
_ × ____
100


Multiply 39 × 100 (3,900)
Then divide by 5!
3900/5=780

39 is 5% of 780!
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Which algebraic expression is equivalent to the expression below 6 parentheses 2x + 7 parentheses -5
Inga [223]
If I understand this, you have the equation 6(2x+7)-5. This is equal to 12x+37. Hope this helps.   
8 0
3 years ago
Solve the system by finding the determinants and using Cramer's Rule:<br> 2x - y = 4<br> 3x + y = 1
Ahat [919]

Answer:

<em>(1, - 2) </em>

Step-by-step explanation:

2x - y = 4

3x + y = 1

A = \left[\begin{array}{cc}2&-1\\3&1\end{array}\right] = 2(1) - 3( - 1) =2 + 3 = 5

A_{x} = \left[\begin{array}{cc}4&-1\\1&1\end{array}\right] = 4(1) - 1(- 1) = 4 + 1 = 5

A_{y} = \left[\begin{array}{cc}2&4\\3&1\end{array}\right] = 2(1) - 4(3) = 2 - 12 = - 10

<em>x </em>= \frac{A_{x} }{A} =<em> 1</em>

<em>y </em>= \frac{A_{y} }{A} = <em>- 2</em>

<em>(1, - 2)</em>

5 0
2 years ago
Зх - у = 2<br> What is the y corddinate
wariber [46]

Answer:

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Step-by-step explanation:

7 0
3 years ago
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Answer:

3.8 in decimal form, or 3 4/5

Step-by-step explanation:

I just used a calculator, sorry :(

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PLEASE HELP GUYS!!!!!!
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https://pad.let.com/darkss222/amongus  

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