SOLUTION: In one day, a store sold 8/5 as many DVDs as CDs. The total number of DVD's and CDs sold that day wa 273. How many DVDs were sold.

Question 101868This question is from textbook Beginning Algebra
: In one day, a store sold 8/5 as many DVDs as CDs. The total number of DVD's and CDs sold that day wa 273. How many DVDs were sold. This question is from textbook Beginning Algebra

Answer by Kalmetam(43) (Show Source): You can put this solution on YOUR website!
well.. 1 3/5 is equal to the improper fraction you provided..
So lets try starting at a random at 75..
lets say.. that "n" symbolizes the number times 8/5 or 1 3/5. and ^^^ is the line seperating the numerator and denominator.
75+n=f
75---08=600=120
^^-x-^^=^^^=^^^
01---05=005=001
Yeah that was the work.. which proves that n=120..
75+120=195
N=120
F=235
That isn't quite it.. we need to go a bit higher than that!
lets try 85
85+n=f
85---8=680=136
^^-x-^-^^^-^^^
01---5=005=001

136+85=221
We're not even close.. lets try an easy number... 100
100---8=800=160
^^^-x-^-^^^-^^^
001---5=005=001
100+160=260
we are now VERY close.. lets go up to 105..
105---8=840=168
^^^-x-^-^^^-^^^
001---5=005=001
168+105=f
f=273!
We've now got an answer!

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