Answer:
The total number of hours = 35 hours.
Step-by-step explanation:
The annual fee of Calm Spa = $125
Per hour charge of Calm Spa = $10
Annual fee of Relax Spa = $230
Per hour charge of Relax Spa = $7
Now we have to find the number of hours for which both have same cost.
Let the number of hours = x
Thus, 125 + 10x = 230 + 7x
10x-7x = 230 – 125
3x = 105
x = 35
The total number of hours = 35 hours.
<span>One <u>possible model</u><span> is:
You could place 3 red marble and 1 blue marble in a bag. The probability of drawing a red marble would be 3/4, which is 75%; this means red marbles would be sunny days and blue marbles would be cloudy days.
Each draw out of the bag would represent one day of the week. Draw a marble 7 times, replacing it after each draw. This would represent the weather for the days of the week.</span></span>
Data Set
20, 25, 30, 35, 40, 50, 50, 60, 75, 80, 100
Mean Absolute Deviation (MAD): 19.454545454545 one decimal 19
Mean x¯¯¯ 51.363636363636
Median x˜ 50
Mode 50
Range 80
Minimum 20
Maximum 100
Count n 11
Sum 565
Well it would be 200 × 8 which would equal to 1600
