Answer:
The answer to your question is the first rain lasted 40 hours and the second rain lasted 30 hours.
Step-by-step explanation:
Data
1st 15 ml/h = x
2nd 30 ml/h = y
Total time = 70 h and 1500 ml
1.- Write 2 equations
First rain + second rain = 70 h
x + y = 70 (I)
15x + 30 y = 1500 (II)
2.- Solve equations by elimination
Multiply first equation by -15
-15x - 15y = - 1050
15x + 30y = 1500
0x + 15y = 450
y = 450 / 15
y = 30 h
x + 30 = 70
x = 70 - 30
x = 40 h
3.- Conclude
The first rain lasted 40 h and the second rain lasted 30 h.
Answer:
p=8 meters
Step-by-step explanation:
3/4=6/p
3p=24
p=8
Answer:
8
Step-by-step explanation:
Order the numbers.
5, 5, 5, 8, 8, 9, 9
The total numbers in the list is 7.
7/2 is between 3 to 4
Choose the middle number in ordered list:
5, 5, 5, 8, 8, 9, 9
answers is 8
This looks like an incomplete answer to me...
I cannot see any diagram or window or opening, or any lines that indicate they are line AC or BD.
Try this option:
domain: x∈[-4;+∞); range: y∈[0;+∞).
