What is eight decreased by 3 times a number equals 2

8- 3x = 2 will be the answer.

Explanation:

let us consider the number is x .

so, the three times of the number= 3×x=3x

when eight  decreases by this three times of the number then its expression = 8-3x

And, according to the question, this expression is equal to two.

Thus, 8-3x=2, where x=2.( because, 8-2=3x⇒6=3x⇒x=2)

for finding the midpoint of any given 2 pair of points simply add the respective x coordinates with other x coordinate and the y coordinate with other y coordinate and divide them by 2

in your question it will be :

(3+1)/2 for the x coordinate of mid point i.e 2

[8+(-4)]/2 for the y coordinate of midpoint i.e 2

so coordinates of mid point of points (3,8) and (1,-4) will be (2,2)

the dimensions are:

step-by-step explanation:

we want to find the dimensions of a rectangular box with volume of

we factor to obtain;

we rewrite the rightmost factor to obtain;

recall that:

we apply difference of two squares formula to obtain;

hence the dimensions are