All categories

3 years ago

2(x-3)=12 Can someone please solve this step by step

Mathematics

2 answers:

attashe74 [19]3 years ago

8 0

Answer:

X=3

Step-by-step explanation:

FOIL

2X-6=12

-6=-6

2X=6

_=_

2 2

Jlenok [28]3 years ago

5 0

Answer:

x=9

Step-by-step explanation:

2(x-3)=12

First you use the distributive property

so you do 2 times x then 2 times -3

rewrite it as 2x-6=12

add 6 on both sides

2x=18

divide 2 from both sides and you get x=9

You might be interested in

Hi I really need Help Please!! Jim's car repair charges $50 plus $16 for every pint of oil. Sam's car repair charges $80 plus $1

romanna [79]

The equation would be 50 + 16x = 80 + 14x. The answer is 15 pints of oil.

7 0

3 years ago

HELP ME ASAP PLEASE!!

Daniel [21]

Answer:

set both of them equal to each other:

8x - 8° = 5x + 25°

subtract 5x by both sides of the equations and it becomes:

3x-8° = 25°

now add 8° both sides:

3x = 33°

divide three by both sides:

x = 11°

now thats done to find B:

plug your x value in the B equation:

5x + 25°

5(11) +25°

55 +25°

not sure if you can add here sorry :(. I hope this helped so far :)

5 0

3 years ago

Can someone pls help thanks

kolezko [41]

I think I think that it is 8 hours. Hopefully that helps!

5 0

3 years ago

In a survey of 200 employees, 65% agreed that the management of the cafeteria should be changed. If the confidence interval is 9

Kruka [31]

Answer:

c.136

Step-by-step explanation:

7 0

3 years ago

A college statistics class at a nearby university has 1,000 students enrolled in it. On a recent exam, the mean score was 75% wi

IceJOKER [234]

Answer:

38.11%

Step-by-step explanation:

Given that:

Mean (μ) = 75, standard deviation (σ) = 5

Z score is a measure in statistics to determine the variation of a raw score from the mean. It is given by the equation:

$z=\frac{x-\mu}{\sigma}$

To calculate the percentage of students scored between a 73 and 78 (C grade), we need to find the z score for 73 and then for 78.

For x = 73, the z score is:

$z=\frac{x-\mu}{\sigma}=\frac{73-75}{5} =-0.4$

For x = 78, the z score is:

$z=\frac{x-\mu}{\sigma}=\frac{78-75}{5} =0.6$

From the probability distribution table:

P(73 < x < 78) = P(-0.4 < z < 0.6) = P(z < 0.6) - P(z < -0.4) = 0.7257 - 0.3446 = 0.3811 = 38.11%

4 0

3 years ago