Answer: the service charge per hour for premium services is $5.5
the service charge per hour for regular services is $3
Step-by-step explanation:
Let x represent the service charge per hour for premium services.
Let y represent the service charge per hour for regular services.
One customer was charged $38 after spending 2 h in premium areas and 9 regular hours. It means that
2x + 9y = 38- - - - - - - - - - - 1
Another customer spent 3 h in premium areas and 6 regular hours and was charged $34.50. It means that
3x + 6y = 34.5- - - - - - - - - - -2
We would eliminate x by multiplying equation 1 by 3 and equation 2 by 2. It becomes
6x + 27y = 114
6x + 12y = 69
Subtracting, it becomes
15y = 45
y = 45/15
y = 3
Substituting y = 3 into equation 1, it becomes
2x + 9 × 3 = 38
2x + 27 = 38
2x = 38 - 27 = 11
x = 11/2 = 5.5
Answer:
identify each arc as a major arc, minor arc, or semicircle. ... arc QRS is a semicircle and has a measure of 180. ... If a set of adjacent arcs form a circle, then the sum
Step-by-step explanation:
The answer is 7, 3 plus 1 equals 4 minus four equals zero plus 7= 7
Answer:
16.5 square units
Step-by-step explanation:
area(trapezoid) = ((b1 + b2) / 2)(h)
base 1: 9
base 2: 3
height: 3
area = ((9 + 3) / 2)(3)
area = (11/2)(3)
area = (5.5)(3)
area = 16.5