Answer: i) 216 liters ii) 60 cm
<u>Step-by-step explanation:</u>
i) 216,000 cm³ × 1 liter/1000 cm³ = 216 liters
ii)
You can draw both lines y=-7x+12 and y=-2/3x –2/3 and define which part of the plane satisfies the unequalities y ≤ –7x + 12 and y ≤ –2/3x –2/3. For example, choosing point (0,0) you can see that
0 ≤ –7·0 + 12 (is true) and 0 ≤ –2/3·0 –2/3 (is false). This means that (0,0) is a solution of the first unequality and isn't a solution of the second unequality, hence (0,0) belongs to the shaded part of the plane defined by the first unequality and doesn't belong to the shaded part defined by the second unequality. Both (black on the image) parts intersect and the common area (red on the picture) is the <span>region that describes the solutions of the system of inequalities.</span>
Answer
45
Step-by-step explanation:
23+5x=14+25x
-25x
23-20x=14
+23
-20x=9
x=.45
45miles
Pounds would be your answer