Answer:
x = 103
Step-by-step explanation:
In my opinion, because x and 77 are the supplementary angles, so 180-77 = x or x+77=180. The answer should be 103......even though it's not in the options (I'm sorry).
Answer:
-2 ≤ x < 12
Step-by-step explanation:
<u>-15x +4 ≤ 34</u>
Add 15x-34 to both sides
-30 ≤ 15x
Divide by 15
-2 ≤ x
__
<u>-6x +70 > -2</u>
Add 6x +2 to both sides
72 > 6x
Divide by 6
12 > x
__
The two solution spaces overlap. Since the AND of the two inequalities is involved, the solution of both is just that part of the number line where there is overlap.
The solution is ...
-2 ≤ x < 12
b= 8
Step-by-step explanation:
If we rewrite the 2nd equation, it becomes
15y = -6x - 11 ---> y = (-2/5)x - (11/15)
In order for this system of equations to have no solution, they must have the same slope, i.e., they're parallel to each other. So rewriting the 1st equation,
20y = -bx + 11
---> -b/20 = -0.4 or b = 8
$6.52 for the grab bag, divide that between two people and you get = $3.26
$6.52/2 = $3.26
$3.23 for the gumballs, divide that between two people and you get = $1.62
$3.23/2 = $1.62
$1.62 + $3.26 = $4.88
each of them have to pay $4.88