-v/9-5/9 I really don't know if it's fully correct, but I hope it is!
Answer:
62
Step-by-step explanation:
119 is adjacent to angle x. angle x and 119=180 (because the angle of a straight line is 180.) which means to find angle x you have to subtract 119 from 180. 180-119=61. because you now know two angles in the triangle you can add the together and subtract them from 180 (remember 180 is what all the angles in a triangle should add up to 180). 61+57=118 and 180-118=62
i hope this helped!
Step-by-step explanation:
you need to substitute the x in (7x +2y=13) with (x=2y+11) to solve it
Answer:
B 36
Step-by-step explanation:
Number of boards from the top of the stack to the 20th board is 20
Number of boards from the bottom of the stack to the 16th board which is immediately below the 20th board is 16
Number of boards in the stack = 20 + 16 = 36