Its just a matter of subbing....and for it to be a solution, it has to satisfy both inequalities.
y < = x + 2....(-2,-4)....x = -2 and y = -4
-4 < = -2 + 2
-4 < = 0 (true)
y > = x - 3.....(-2,-4)...x = -2 and y = -4
-4 > = -2 - 3
-4 > = -5 (true)
ur answer is the last one
Answer:
Step-by-step explanation:
<em>See attached.</em>
The intersection of the lines is the solution.
<u>Approximate values of the coordinates is:</u>
- (2, 3.5) or (2, 3) if integer values are required
That is because mass and volume depend on the size of the sample. The same substance can come in different sizes in which its mass and volume would be different.
2.5x + 3.5x + 8 = 6.2x -10
6x + 8 = 6.2x -10
-0.2x + 8 = -10
-0.2x = -18
x = 90
This trip would take 2 hours and 15 minutes, since 1,991.25/885=2.25. This means it would take two hours and 25/100 (1/4) of an hour. 1/4 of an hour is 15, so you add 15 minutes to 2 hours.