Answer:
x = 21.3 repeating. so put the - on top of the 3 if you're writing it down
Suppose that this person drives at r mph going to the mountains, and gets there in 12 hours. Returning, this person drives at (r+20) mph and gets home in 8 hours. We don't know the distance yet, but can solve for the initial speed, r, by setting
d = 12r = (r+20)(8). Solving for r, r=40 mph (going) and (40+20)mph = 60 mph (returning. Since d=12 r, d = (12 hrs)(40 mph) = 480 miles (answer).
Answer:
X=45
Step-by-step explanation:
45+3x=180
180-45=135
135/3=45
x has to be 45
x=45
Answer:
111°
Step-by-step explanation:
the angle is question is an alternate-interior angle with the one labeled as 111° and alt-int angles are congruent
the ansewr is x=3 and y=0
