Answer:
1/2 = r
Step-by-step explanation:
7r + 21 = 49r
Subtract 7r from each side
7r-7r + 21 = 49r-7r
21 = 42r
Divide each side by 2
21/42 = 42r/42
1/2 = r
Solution - 49 jellybeans divided by 7 for the ration purposes = 7 so 1/7 the ratio is 7
Therefore Kim having 4/7 is 4 X 7
Answer - 28
After a year the
population will be 98.6% (100% - 1.4%) 98.6% as a decimal is 0.986 ... so after
1 year it will be: <span>
3800 x 0.986
after 2 years it will be:
3800 x 0.986 x 0.986...
after 3 years: 3800 x (0.986)^3
<span>in 2018. And after 4 years it will be 3800 x (0.986)^4 =
which is 3591.62724 or 3592</span></span>
No it is an irrational number