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11111nata11111 [884]
3 years ago
12

What is 2(x+10)=2(3x-8)

Mathematics
2 answers:
Julli [10]3 years ago
7 0

Answer:

x = 9

Step-by-step explanation:

2(x+10)+2(3x)-8    Distribute

2x+20=6x-16      Subtract like terms

20=4x-16     Add 16 on both sides since it negative

36=4x        Divide 4 on both sides

x=9

Mrac [35]3 years ago
3 0

Answer:

x=9

Step-by-step explanation:

we can start by using the distributive property

so then

2x+20=6x-16

we now need to move the variables to one side and the numbers to the other

-4x=-36

x=9

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Given the following exponential function, identify whether the change represents growth or decay, and determine the percentage r
monitta

Answer:

Decay

since 0.292 is less than 1

% rate of decrease

1 - 0.292 = 0.708

70.8%

4 0
2 years ago
how could you estimate the volume of the box if you didn't know anything except the volume of the cylinder inside it?
kobusy [5.1K]

Answer:

Step-by-step explanation:

Since the box contains a cylinder, the height of the box must be gt; = cylinder height

And the area at the bottom of the box is definitely larger than the area at the bottom of the cylinder.

The area at the bottom of the cylinder is PI r squared,

If the bottom of the box is a square, then the area of the bottom is 4r^2, whereas the bottom tends to be polygon, which is equivalent to cutting the circle into equal parts by circle cutting.

So the area at the bottom of the box is \lim_{ Number of polygon edges\to \infty} \pi r^{2},

It follows that the volume of the box is greater than the volume of the cylinder

6 0
3 years ago
A bicycle was originally sold for $400 was on sale for $320. what percent was the bike marked down?
Eva8 [605]
100% of the price = $400
x % of the price = $320
we need to find x

using a proportion
100 : 400 = x : 320
100 * 320 = 400 * x
32000 = 400x
x = 32000 / 400
x = 80

That means the new price is 80% of the previous price.
100% - 80% = 20%
and based on this we can make a conclusion that the discount was 20%

I hope it is clear to you, feel free to ask anything about it :)

6 0
3 years ago
Read 2 more answers
-2 x -2 x -2 = ? <br> (-2) cubed
Lunna [17]

Answer:

-8

Step-by-step explanation:

(-2)(-2)(-2)

4(-2)

-8

5 0
2 years ago
PLEASE HELP PLEASE PLEASE
liberstina [14]

<L = 1/2(130 - arc MK)

45 = 1/2(130 - arc MK)

90 = 130 - arc MK

arc MK = 130 - 90

arc MK = 40

Answer

arc MK = 40°


4 0
3 years ago
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