Homework Help: algebra

Posted by wan on Monday, May 3, 2010 at 10:19am.

juan is 8 years than his sister rosa. one day, he tells rosa that he is twice her age, but will only be twice her age for one year. to figure out how old juan and rosa are, you must first identify the conditions. what are the conditions in this problem?

a) juan is twice as old as rosa; rosa's age
b) juan's age; rosa's age
c) juan is 8 years older than rosa; juan's age
d)juan is 8 years older than rosa; juan is twice as old as rosa

and the answer i picked was d

thanks

algebra - PsyDAG, Monday, May 3, 2010 at 10:37am
Right!

Let x = Rosa's age

2x = x + 8
algebra - jack, Tuesday, September 4, 2012 at 5:01pm
the sum of

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