This is not a full question. If you were given the amount at the begining of 1970 (we'll call it x) and the amount at the end of 1980 (we'll call it y), we should solve them accordingly:
y-x=? (calling the answer a)
a/y=%(not answer yet, call this b)
b+100=answer
Answer:
1 is not true
2 is sometimes
3 is true all the time
4 is true all the time
Step-by-step explanation:
x and 4x are supplementary to each other, meaning they add up to 180. So your equation is 180=5x. Divide both sides by 5 to get 36=x.
11(x+10) = 132
Distributive property
11x + 110 = 132
Now isolate the variable.
11x + 110 = 132
-110 -110
132 - 110 = 22
11x = 22
11x/11 = 22/11
x= 2
Answer: x = 2
I did the test and it was 51.4 or 51.5 cuz i submit the test without checking but i got 100% tho
hope i helped^-^