SOLUTION: It has been observed in one country, that 55 out of every 100 births is a baby with brown eyes. In 640 births how many brown eyed babies would you expect?

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Question 62780: It has been observed in one country, that 55 out of every 100 births is a baby with brown eyes. In 640 births how many brown eyed babies would you expect?
Answer by Cintchr(481) About Me  (Show Source):
You can put this solution on YOUR website!
set this up as two fractions
+55%2F100+=+x%2F640+
cross multiply
+100x+=+55%28640%29+
divide both sides by 100
+x+=+55%28640%29%2F100+
reduce/divide
+x+=+55%2864%29%2F10+
+x+=+11%2864%29%2F2+
+x+=+11%2832%29+
+x+=+352+