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
y = 20! always remember that it's always (x,y)!
I think the answer may be 1874.8yd³.
The formula to find the volume of a triangular pyramid is apothem length times side length times height. Then divide all by six.
a x b x h / 6
Answer:
33480783
Step-by-step explanation:
Geometric term is given by: Tn = ar^(n - 1)
and r = -3
T15 = 7 * (-3)^(15-1)
T15= 7 * 4782969
T15 = 33480783
Surveying people coming out of a concert because it will be all people who like the concert they were just attending.