Answer:
Step-by-step explanation:
12
Answer: 6 ≤ h ≤ 9
Step-by-step explanation:
Hi, since He charges $40 as a fixed rate for the first hour plus $20 for each additional hour, the cost of the tutoring service is equal to the fixed rate(40) plus, the product of the additional hours (h-1) and the cost per additional hour (20).
40+20(h-1)
40+20h-20
20+20h
Since a student can spend between $140 and $200, the previous expression must be greater o equal than 140, and less or equal than 200.
140≤20+20h≤200
Subtracting 20
140-20 ≤20-20+20h ≤200-20
120 ≤ 20h ≤ 180
Dividing by 20
120/20 ≤ 20h/20 ≤ 180/20
6 ≤ h ≤ 9
Perimeter 90
Height 15
Answer
30
Answer:
I don't know 1
2. 3/4
3. y= 1000(0.75)^x
Step-by-step explanation:
Answer:
20 is one possible answer
24 is another possible answer The question is ambiguous
Step-by-step explanation:
First put what you have in order. The median is the central number.
12 18 22 26 30
The median for this case is not listed in your answers. 22 is not there.
So we have to give some thought to what the sixth number was. Unfortunately that leads to two possible answers
If the missing number is less than 12, the the median will be between 18 and 22. Say the missing number is 10
10 12 18 22 26 30
(18 + 22)/2 = 20 would be the answer.
However if the missing number was greater than 26 (say it was 32) then the numbers would be
12 18 22 26 30 32 the average between the 3rd and 4th numbers.
(22 + 26)/2 = 48/2 = 24
Both answers are possible and are listed. There is no single answer.