Which of these shows results of using the first equation to substitute for y in the second equation then combine like terms y=2x 2x+3y=16 a.5y=16 b.4x=16 c.8x=16 d.5x=16 i think it is c

The correct option is (C).

Step-by-step explanation:  The given system of equations is

We are given to to choose the correct option that shows results of using the first equation to substitute for y in the second equation then combine like terms.

From equation (i), we have

Substituting the value of 'y' from here in equation (ii), we get

Therefore, the correct result is

Thus, option (C) is correct.

hi friend

here is your answer

there are two angles that are alternate interior angle with angle 9

the angle 15 and angle 7 are alternate interior angle with angle 9.

hope it is for you so mark my answer as a brainliest

b. 24 mm

step-by-step explanation:

use the pythagorean theorem.

a^2 + b^2 = c^2

a^2 + 7^2 = 25^2

a^2 + 49 = 625

a^2 = 576

a = 24

answer: b. 24 mm