-2x+x-4=-7 , -1x=-3, x=3. y=3-4, y=-1
Answer:
D) 1980 to 2000
Step-by-step explanation:
Finding the average rate of change in each interval to determine the greatest one.
Production per interval
1950-1960 =
= 10 million
1960-1970 =
= 20 million
1970-1980 =
= 30 million
1980-2000 =
million
Rate of change (1950-1960)= ![\frac{10}{11} \times 100= 90.90\%](https://tex.z-dn.net/?f=%5Cfrac%7B10%7D%7B11%7D%20%5Ctimes%20100%3D%2090.90%5C%25)
Rate of change (1960-1970) = ![\frac{20}{21} \times 100= 95.23\%](https://tex.z-dn.net/?f=%5Cfrac%7B20%7D%7B21%7D%20%5Ctimes%20100%3D%2095.23%5C%25)
Rate of change (1970-1980)= ![\frac{30}{41} \times 100= 73.17\%](https://tex.z-dn.net/?f=%5Cfrac%7B30%7D%7B41%7D%20%5Ctimes%20100%3D%2073.17%5C%25)
Rate of change (1980-2000)= ![\frac{90}{71} \times 100= 126.76\%](https://tex.z-dn.net/?f=%5Cfrac%7B90%7D%7B71%7D%20%5Ctimes%20100%3D%20126.76%5C%25)
∴ rate of change between 1980 to 2000 is 126.78%