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:
1
Step-by-step explanation:
no es mi culpa que eres una caca
Answer:
16
Step-by-step explanation:
Answer:
M=(9, 13.5)
Step-by-step explanation:
What you do is you need to use the midpoint formula.
(x_1+x_2/2), (y_1+y_2/2).
(11, 13) and (7, 14) are your points and you put those numbers into the equation.
11 and 7 are x and 13 and 14 are y.
(11+7/2), (13+14/2)
M=(9, 13.5) is your answer.
