Answer:
x = -1/2
Step-by-step explanation:
4(x + 3) = 9x + 16 + 3x
Distribute the 4
4x +12 = 9x+16+3x
Combine like terms
4x+12 = 12x+16
Subtract 4x
4x-4x+12 = 12x-4x+16
12 = 8x+16
Subtract 16
12-16 = 8x+16-16
-4 =8x
Divide by 8
-4/8 =8x/8
-1/2 =x
Let t be the required number of years.
34 + t = 3(6 + t)
34 + t = 18 + 3t
2t = 16
t = 8
The answer is 8 years.
Answer: x = 1, y = -3
Step-by-step explanation:
So triangles degrees always adds until 180.
so if two angles add to more than 90 then the last angle is less than 90
there are three types of triangles
Right Triangle = one angle is 90 degrees
Acute = all angles less than 90 degrees
Obtuse = One angle is greater than 90 degrees
so this triangles must be acute
the answer is B
