Steps to solve -3x-2=13

Mathematics

1 answer:

Murljashka [212]2 years ago

5 0

Answer:

X=-5

Step-by-step explanation:

1.) Add 2 to 13, then you have -3x=15

2.) Divide 15 by -3 to get the solution. x=-5

You might be interested in

Solve for X and check the solution.<br>-2x=4x+9

koban [17]

-2x=4x+9 |-4x
-6x=9 |:(-6)
x=-1,5

Check:

-2*-1,5=4*-1,5+9
3=-6+9
3=3

4 0

2 years ago

The total cost after tax to repair Keisha’s iphone is represented by the expression 0.09(75h) + 75h, where h represents the numb

elena55 [62]

the part where it says after tax to repair keishas iphone is represented by the expression 0.09

8 0

3 years ago

If lines m and n are parallel, and 5 measures 120o, which is the measure of 3?

Ierofanga [76]

If angle 3 is adjacent (right next to) angle 5, then its measure would be 60 degrees. If angle 3 is congruent (vertical or alternate interior/exterior) to 5, it is 120.

3 0

3 years ago

What is the distance between the points (7, 8) and (-8, 0) on a coordinate grid

iris [78.8K]

Hence, the distance between (7,8) and (-8,0) is:17

explanation: (a,b)=(7,8) and (c,d)=(-8,0)

5 0

2 years ago

Let x denote the courtship time for a randomly selected female–male pair of mating scorpion flies (time from the beginning of in

gavmur [86]

Complete Question:

a) Is it plausible that X is normally distributed?

b) For a random sample of 50 such pairs, what is the (approximate) probability that the sample mean courtship time is between 100 min and 125 min?

Answer:

a) It is plausible that X is normally distributed

b) probability that the sample mean courtship time is between 100 min and 125 min is 0.5269

Step-by-step explanation:

a)X denotes the courtship time for the scorpion flies which indicates that is a real - valued random variable, and since normal distribution is a continuous probability distribution for a real valued random variable, it is plausible that X is normally distributed.

b) Probability that the sample mean courtship time is between 100 min and 125 min

$\mu = 120\\n = 50$