Answer:
x=3.5
Step-by-step explanation:
1. Multiply
18x-12=5x+30
2. Move the x's to one side
12x= 42
3. Isolate the variable by dividing
x=3.5
Answer:
20% tip is $3.97, add that to 18.97 and you get $22.76, then add 8.25 and you get $31.01
Answer:
120 degrees
Step-by-step explanation:
This is a quadrilateral, and by definition, the sum of all the interior angles is 360. So, we can just sum up all the expressions and set them equal to 360:
2x + x + 2x + x = 360
Combine like terms and solve for x:
6x = 360
x = 360/6 = 60
<BCD = 2x = 2 * 60 = 120
Thus, the answer is 120 degrees.
Hope this helps!
Answer:
<h2>4 p.m.</h2>
Step-by-step explanation:
We know that a day contains 24 hours in total.
The time already passed will be represented by
.
The remaining time would be
, becasye half of what has already passed remains until the end of the day.
Basically, the sum of these two expression gives 24 hours in total.

Therefore, the actual time is 4 p.m.