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Y_Kistochka [10]
3 years ago
11

Help ASAP Ill give you brainliest

Mathematics
1 answer:
LenKa [72]3 years ago
4 0

Answer:

none of these

Step-by-step explanation:

There are 3 boys walking

There are a total of 20 people

3/20 = 0.15

That is 15 percent, therefore none of these answers.

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Kylie wrote the expression. (9+k)=5. what is the value of kylies expression for k=4
Fynjy0 [20]
I thought it was -4 I calculated it and that’s what I got?¿
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Draw to show how you can use models to compare 345 and 391.
Trava [24]
I have drop in a file for u to see it.

5 0
4 years ago
Order of operation? 5p^2 = h when p =2 and h = 8
Naddika [18.5K]

Given: p=2, h=8

5p^2=h

5(2)^2=8 ------- substitution here

5(4)=8

20 doesn't equal 8

I did exponents first because it comes before multiplication in the order of opertions.

5 0
3 years ago
7%of£40 <br> show working out plz
kykrilka [37]

Answer:

7% of 40 is 2.80

Step-by-step explanation:

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6 0
3 years ago
Read 2 more answers
Solve for x in the equation x^2- 10x+ 25=35
DIA [1.3K]

Answer:

<h3>x = 5  +  \sqrt{35}  \:  \:  \:or \:  \:  \: x = 5 -  \sqrt{35}  \\</h3>

Step-by-step explanation:

x² - 10x + 25 = 35

Move 35 to the left side of the equation

That's

x² - 10x + 25 - 35 = 0

x ² - 10x - 10 = 0

Using the quadratic formula solve the equation

That's

<h3>x =  \frac{ - b\pm \sqrt{ {b}^{2} - 4ac } }{2a}</h3>

From the question

a = 1 , b = - 10 , c = - 10

Substitute the values into the above formula and solve

That's

x =  \frac{ -  - 10\pm \sqrt{( { - 10})^{2} - 4(1)( - 10) } }{2(1)}  \\  =  \frac{10\pm \sqrt{100 + 40} }{2}  \\  =  \frac{10\pm \sqrt{140} }{2}  \\  =  \frac{10\pm2 \sqrt{35} }{2}  \\  =  \frac{10}{2} \pm \frac{2 \sqrt{35} }{2}  \\  = 5\pm \sqrt{35}

We have the final answer as

<h3>x = 5  +  \sqrt{35}  \:  \:  \:or \:  \:  \: x = 5 -  \sqrt{35}  \\</h3>

Hope this helps you

7 0
3 years ago
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