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kupik [55]
4 years ago
13

Solve 4x - 3 = 18. Round to the nearest thousandth.

Mathematics
2 answers:
frutty [35]4 years ago
8 0

The answer is actually 5.085 on edgu.

Step-by-step explanation:

lorasvet [3.4K]4 years ago
6 0

Answer:

x=5.250

Step-by-step explanation:

We have been given an equation 4x-3=18. We are asked to solve our given equation.

First of all, we will add 3 to both sides of our equation.

4x-3+3=18+3

4x=21

Now, we will divide both sides of our equation by 4.

\frac{4x}{4}=\frac{21}{4}

x=5.25

Upon rounding our answer to nearest thousandth (3 places after decimal) we will get,

x=5.250

Therefore, the solution for our given equation is x=5.250.

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In a In a school of 567 pupils 278 are boys.
DIA [1.3K]

Answer:

49% of the pupils are boys and 51% are girls.

Step-by-step explanation:

Alright, so first, you've got to find the total number of students: 567.

Now, to find the value of 1%, you divide 567 by 100, which will give you 5.67.

Next, you divide the number of male students by the value of 1%. That's 278 ÷ 5.67 = 49.0299823633157.

Subtracting that from 100% gives you 50.9700176366843 (percentage of girls)

Now, you can't write all that down, so you'll round it! 49.0299823633157 will round down, because 0 is less than 5, so it's 49%. 50.9700176366843 rounds up, because 9 is greater than 5, so that's 51%.

Therefore, 49% of the pupils are boys and 51% are girls.

I hope this helps!

4 0
3 years ago
Reflect the point in the y-axis
SVEN [57.7K]

Answer:

A(-1,3),B(2,-2),C(4,5),D(-2,-5)

4 0
3 years ago
Read 2 more answers
In a volcano, erupting lava flows continuously through a tube system about 13 kilometers to the sea. Assume a lava flow speed of
ExtremeBDS [4]

Answer:

26 hours

Step-by-step explanation:

speed = distance/time

s = d/t

st = d

t = d/s

t = (13 km)/(0.5 km/h)

t = 26 h

Answer: 26 hours

8 0
3 years ago
The college Physical Education Department offered an Advanced First Aid course last summer. The scores on the comprehensive fina
Mekhanik [1.2K]

Answer:

a) Robert, Juan, linda

b) Joel

c) Susan, Jan

d)    165.4

       173.4

       134.5

       156

       147.3  

       170.2

       

Step-by-step explanation:

The standardized normal distribution  N (0,1)  that expresion stands for normal distribution with mean 0 and standard deviation 1, therefore all positive values are above 0 and all negativa values are below 0

The sample n is 6 then we should use t-student distribution, we calculate t statistic as follow

t = (x-μ)/εε        where standard error is   εε = σ/√6      εε = 9.795  since         σ =24

Robert

0.96 * 9.795  = x - 156                 ⇒     x = 165.4

1.78 * 9.795  = x  - 156                          x = 173.4

-2.2 * 9.795   = x - 156                          x = 134.5

0 * 9.795        = x- 156                          x= 156

-0.89* 9.795   = x -156                          x = 147.3

1.45 * 0.9795  = x -156                         x = 170.2

7 0
4 years ago
Does anyone know the correct answer?
LiRa [457]

Answer:

270

Step-by-step explanation:

6 0
3 years ago
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