Answer:
watch the video
Step-by-step explanation:
Change the 5 - 2t with kcc (keep,change,change)and make it 5+-2t=3t
paint is needed to cover an entire wall : 2
if 1/2 gallon of paint cover 1/4 of a wall => 1 wall = (1/2)/(1/4) =2
Answer: 2
Step-by-step explanation:
8/2 = 4
4/2 = 2
Answer:
2kx+4y=20 ⇒ kx+2y=10
3x+6y=30 ⇒ x+2y= 10
k is the coefficient of x, so it is the slope of the line
- when k=1, both equations will be same, then there are many solutions
- when k=0 there is one solution
- when k is anything different, then the lines will be parallel, so no solutions
