SOLUTION: In 2000 there were 48.5 births per 1000 females 15 to 19 years of age. This birth rate is 4/5 of the birth rate for teenagers in 1991. a)Write an equation and solve it to find t

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Question 55223: In 2000 there were 48.5 births per 1000 females 15 to 19 years of age. This birth rate is 4/5 of the birth rate for teenagers in 1991.
a)Write an equation and solve it to find the brith rate for teenagers in 1991.


b)What will be the birth rate for teenagers in 1996, if there were 55 births per 1000 females?
Answer by funmath(2873) About Me  (Show Source):
You can put this solution on YOUR website!
In 2000 there were 48.5 births per 1000 females 15 to 19 years of age. This birth rate is 4/5 of the birth rate for teenagers in 1991.
:
a)Write an equation and solve it to find the birth rate for teenagers in 1991.
48.5%2F1000=%284%2F5%29X
.0485=%284%2F5%29X
%285%2F4%29%28.0485%29=%285%2F4%29%284%2F5%29X
.060625=X
The birthrate was .061 or about .061*100%=6.1% (if you need percentage.)
:
b)What will be the birth rate for teenagers in 1996, if there were 55 births per 1000 females?
55%2F1000=.055
or .055*100%=5.5% (if you need percentage.)
Happy Calculating!!!