Answer:
x = 9 or x = 0
Step-by-step explanation:
Solve for x over the real numbers:
x^2 - 4 x - 5 x = 0
x^2 - 4 x - 5 x = x^2 - 9 x:
x^2 - 9 x = 0
Factor x from the left hand side:
x (x - 9) = 0
Split into two equations:
x - 9 = 0 or x = 0
Add 9 to both sides:
Answer: x = 9 or x = 0
<span>erry starts rowing at 2 pm from the west end of the lake, and Tao starts rowing from the east end of the lake at 2:05 pm.
------
Terry DATA:
rate = 60 meter/min ; time = x min ; distance = r*t = 60x meters
-----
Tao DATA:
rate = 40 meter/min ; time = x-5 min ; distance = r*t = 40(x-5) meters
--------------------------
If they always row directly towards each other at what time will the two meet?
------
Equation:
dist + dist = 2000 meters
60x + 40(x-5) = 2000
20x = 1800
x = 90 minutes
---</span>
O.o that so hard but my big sister know how to do it
