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Dima020 [189]
2 years ago
8

2x +4 (3 - 2x) = 3(2x + 2)/6 + 4 from my math book

Mathematics
2 answers:
adell [148]2 years ago
8 0

2x + 4(3-2x) = 3(2x+2)/6 +4

Break the brackets :

2x + 12 - 8x = (6x+6)/6 + 4

2x + 12 - 8x = x + 5

2x + 12 - 8x - (x+5) = 0
2x + 12 - 8x - x - 5 = 0
-7x + 7 = 0

-7x = -7
x = 1.

Hope it helps :)

liberstina [14]2 years ago
4 0

Answer:

x = 1

Step-by-step explanation:

2x +4 (3 - 2x) = 3(2x + 2)/6 + 4

2x+12-8x = (6x+6)/6 +4

-6x + 12 = x+1+4

12-5 = 7x

7x = 7

x=1

Hope this helps!

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Will give branilst...Thank you in advance <3
Alisiya [41]
It is the first option
3 0
3 years ago
The half-life of iron-52 is approximately 8.3 hours.How much of a 13 gram sample of iron-52 would remain after 8 hours? Round to
Alexandra [31]

6.665 grams of the 13 grams remain after 8 hours.

<h3>How much of a 13 gram sample of iron-52 would remain after 8 hours?</h3>

The decay equation for the 13 grams of iron-52 is:

N(t) = 13g*e^{(-ln(2)/8.3h)*t}}

Where N is the amount of iron-52, and t is the time in years.

Where we used the fact that the half-life is exactly 8.3 hours.

Now, the amount that is left is given by N(8h), so we just need to replace the variable t by by 8 hours, so we get:

N(8h) = 13g*e^{(-ln(2)/8.3h)*8h}} = 6.665g

So 6.665 grams of the 13 grams remain after 8 hours.

If you want to learn more about half-life:

brainly.com/question/11152793

#SPJ1

5 0
2 years ago
The diameter of a circle is 9 feet. Find the radius.
slava [35]
The radius is half of the diameter.

9/2=4.5

The radius is 4.5 feet.

Hope this helps!
4 0
4 years ago
<img src="https://tex.z-dn.net/?f=%20%7B75%7D%5E%7B2%7D%20%2B%2025%20-%20750" id="TexFormula1" title=" {75}^{2} + 25 - 750" alt=
frez [133]
your answer is 4900
3 0
3 years ago
32 + y - 2y?<br> Re write the equation with the variable with the highest exponent first
SVEN [57.7K]

Answer:

-2y^2 + y +32

Step-by-step explanation:

The variable with the highest exponent is y^2

8 0
3 years ago
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