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olga2289 [7]
3 years ago
6

Solve the inequality for x. Show each step of the solution. 12x>9(2x-3)-15

Mathematics
1 answer:
valina [46]3 years ago
5 0

12x > 9(2x-3)-15\qquad|\text{use distributive property}\\\\12x > (9)(2x)+(9)(-3)-15\\\\12x > 18x-27-15\\\\12x > 18x-42\qquad|\text{subtract 18x from both sides}\\\\-6x > -42\qquad|\text{change the signs}\\\\6x < 42\qquad|\text{divide both sides by 6}\\\\x < 7

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Plz help i will be grateful if someone help
Sonja [21]

Answer:

4698

Step-by-step explanation:

We know that 1 person is on 3quares, so we need to know how many squares value 3 has every room. We do that in the way- we calculate surface area of every room and divide with 3.

First room has surfaxe 75x75=5625

5625/3=1875

So the first room can have 1875 persons.

2nd room has surface 130x60=7800

7800/3=2600

The 2nd room can have 2600 persons.

3th room has 180 sets, so it is for 180 persons.

We also know that tey can add on every exit 10 more, and they have 4 exits, so it is

10x4=40

The total tickets they can sell is:

1875+2600+180+40=4695

7 0
3 years ago
Compare the values of 9 in the number 899,548
erastova [34]

90,000 vs 9000

90,000/9000

10 times greater

8 0
3 years ago
36.8 is the sum of r and 13.8 <br> x=
Alecsey [184]

Answer:

r=23

Step-by-step explanation:

sum: quantity obtained by addition

r+13.8=36.8

r=36.8-13.8

r=23

3 0
3 years ago
The radius of the hydrogen atom is 0.529x10/-10 and the radius of the nucleus is 1.2x10/-15m. Compare the radius of each by writ
raketka [301]

we know that

The radius of the hydrogen atom is  0.529*10^{-10}m

The radius of the nucleus is  1.2*10^{-15}m

the ratio is equal to

\frac{0.529*10^{-10}}{ 1.2*10^{-15}} = 44,083.33

that means the radius of the hydrogen atom is 44,083.33 times the radius of the nucleus

therefore

<u>the answer is</u>

the ratio is equal to 44,083.33

7 0
3 years ago
Can anyone pls help me
Sergio039 [100]

Answer:

7

Step-by-step explanation:

find the square root of 111 which is 10.53565375

find the square root of -√20 which is -4. 472135955

given your four possible answers, it is 7 because it is the only number between 10 and -4.

4 0
3 years ago
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