10 minutes before 9 is 8:50. since any time on the hour is at a perfect 60 minutes, you subtract the minutes given and move 1 hour back to find your answer.
for example, if you were asked what 20 minutes before 10 was. you start by subtracting 20 from 60. 60-20= 40, this being your minutes. 10-1 is 9, this being your hour, making the final answer 9:40.
y-intercept -3
slope 1/2
is sufficient info with which to write an equation for a straight line:
y = mx + b becomes y = (1/2)x - 3.
You should check this by determining whether or not (2,-1) satisfies this equation.
Answer:
That's correct
Step-by-step explanation:
Solving for x
-15x+20y=60
-15x=60-2y
x= (-4+4/3)
x=(-8/3) Answer
5(x+4)=4(x-6)
5x+5•4=4x-4•6
5x+20=4x-24
x= -44
