We can solve for x in by substituting 'y=15-5x' from the second one into the first equation, because in the second equation, y has no coefficient, which will make it easier to substitute.
I do not understand because it’s not in English
Answer:
x equals 50°.
Step-by-step explanation:
The sum of all angles of a triangle is 180°
So, to find the missing angle x, we can use the following equation:-
70° + 60° + x° = 180°
130° + x° = 180°
x° = 180° - 130°
x° = 50°
Answer:
1. t=21+4
2. 25º
Step-by-step explanation:
1. let t=temperature. its 21 now, which is 4 less than it was before, so you add
2. 21+4=25º
hope this helps have a great day/night!!! :))
Substitute x = 6y + 21 into the first equation:-
6(6y+21) + 2y = 26
36y + 126 + 2y = 26
38y = -100
y = -2.63
x = 6(-2.63) + 21 = 5.22
answer (-2.63, 5.22) to nearest hundredth
