9 hrs and 18 minutes = 8 hrs and 78 minutes......all I did was borrow 1 hr from the hr side, convert it to 60 minutes, and add that to the minute side.
8 hrs 78 minutes
2 hrs 55 minutes
-------------------------subtract
6 hrs 23 minutes <=== ur answer
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
Multiply price per pound by total pounds:
2.50 x 3.5 = 8.75
Total cost = $8.75
Answer:
The answer would be y=-8
Answer:
I think the answer is C
Step-by-step explanation:
The Army is already sold out the tent maker so A is wrong and The question asks how many brigades there are not the price per one