3x - 20 + 3x + 5 = 111
Combine like terms
6x - 15 = 111
Add 15 to each side.
Evaluate
6x = 126
x = 21
Plug x back into the equation for angle EFG.
EFG = 3x -20
3(21) - 20
EFG = 43 degrees
Probability of getting a pen in the first box:
7/12 = 0.58
0.58 x 100% = 58%
probability of getting a crayon in the second box:
5/10 = 1/2
half of 100 is 50, so 50%
or:
1/2 x 100% = 50%
¾ = 75% of x
x = (¾)/75% = (¾)/0.75 = 0.75/0.75 = 1
Answer:
b.obtuse
Step-by-step explanation:
if it is obtuse it has 1 angle over 90° and two angles under 90°
