1. Distribute the Negative Signs
2. Combine like terms
-2x^2 + 12x-7
Answer:
2
Step-by-step explanation:
So let's call the time she needs to catch up "x", and so Terry's rate would be x-6 since he left home 6 hours earlier. Then we multiply the rates to get 20x - 120 = 80x. The answer is -2, but we can just say 2.
Checking our answer, that means if it took Sally 2 hours, it took Terry 8 hours for he left home 6 hours earlier. So 8 times 20 = 160km traveled. 2 times 80 = 160km traveled. Same distance.
Answer:
I'm not sure exactly what you're looking but I would set up the equation like this.
y=65+5.5x for Ned's equation
y=8.75x for Jack's equation.
Step-by-step explanation:
This is in y=mx+b format, hopefully it helps!
Answer:
Option b.
Step-by-step explanation:
Consider the below figure attached with this question.
A computer program selects blue,red,green as the background color each time the program is used.
Blue background = 12 times
Red background = 21 times
Green background = (45-12-21) times = 12 times
Blue background = Green background
Red background ≠ Green background
Green is just as likely as blue to appear, but not as likely as red.
Therefore, the correct option is b.
Answer:
Tiles won't be enough
Step-by-step explanation:
The perimeter of the area :
2(length + Width)
Given dimension = 6.4 by 2.7 feets
Perimeter = 2(6.4 + 2.7) = 18.2 feets
1 feet = 12 inches
Perimeter = 18.2 * 12 = 218.4 inches
1 tile = 6 inches
30 tiles = 6* 30 = 180 inches
Since the perimeter of the area is greater Than the 180, then we can conclude that the tiles won't be enough
