Answer:
Your new account balance is -$5.35
Step-by-step explanation:
-20.85 + 15.50 = -5.35
X + 5 = 2x
subtract x from both sides:-
x - x + 5 = 2x - x
5 = x
Solution is x = 5
<h3>
Answer: 16.5</h3>
=========================================================
Explanation:
We use cosine to tie together the adjacent and hypotenuse
cos(angle) = adjacent/hypotenuse
cos(38) = x/21
21*cos(38) = x
x = 21*cos(38)
x = 16.5482258257411
x = 16.5
The greatest common factor is 5
18=2(4*x)
divide both sides by 2
9=4*x
move terms
-x=4-9
calculate
-x=-5
change the signs
x=5