What is the value of x? Explain. 12 + x=4

Mathematics

2 answers:

Vikki [24]3 years ago

5 0

Answer:

X= -8

Step-by-step explanation:

4-12=-8

You must reverse the problem so that you are solving for x, rather than 4.

ivolga24 [154]3 years ago

4 0

Answer:

12+x=4

12-4=x

8=x

x=8 is the answer please mark my answer is brainliest

You might be interested in

Which equation is a point slope form of the equation of this line? (-2,1). (1,7)

Lilit [14]

Hello :
answer : D. (Y-1)=2(x+2)
because :
if x=1 ... y =7
if : x= -2 .... y= 1
the slope is : (1-7)/(-2-1) = -6/-3=2

3 0

3 years ago

Decreace £2500 by 1%

kondaur [170]

Ok, if you decrease £2500 by 1% you get 99% remaining
So
99% of £2500 = 0.99 x £2500 = £2475

6 0

3 years ago

At one point in 2011, there were approximately 2.1 billion internet users worldwide. If approximately 9/40 of the users lived in

Rufina [12.5K]

Estimating the number of internet users in Europe by multiplying the ratio with the whole internet users
users in Europe = 9/40 × 2.1 billion
users in Europe = 9/40 × 2,100 million
users in Europe = (9 × 2,100)/40 million
users in Europe = 18,900/40 million
users in Europe = 472.5 million

The number of internet users in Europe is approximately 472.5 million at this time

7 0

4 years ago

4.) The time X (minutes) for a lab assistant to prepare the equipment for a certain experiment is believed to have a uniform dis

Jet001 [13]

Answer:

$P(35-2 < X 35+2) = P(33< X< 37)= P(X$

And using the cumulative distribution function we got:

$P(35-2 < X 35+2) = P(33< X< 37)= P(X$

The probability that preparation is within 2 minutes of the mean time is 0.134

Step-by-step explanation:

For this case we define the following random variable X= (minutes) for a lab assistant to prepare the equipment for a certain experiment , and the distribution for X is given by:

$X \sim Unif (a= 20, b =50)$