SOLUTION: The ratio of ducks and frogs is 37:39 respectively.The average number of ducks and frogs in the pond is 152.what is the number of frogs in the pond? a.149 b.152 C.156. d.144 e

Algebra ->  Length-and-distance -> SOLUTION: The ratio of ducks and frogs is 37:39 respectively.The average number of ducks and frogs in the pond is 152.what is the number of frogs in the pond? a.149 b.152 C.156. d.144 e      Log On


   

Question 979104: The ratio of ducks and frogs is 37:39 respectively.The average number of ducks and frogs in the pond is 152.what is the number of frogs in the pond?
a.149
b.152
C.156.
d.144
e.None
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
I can say:
+d%2Ff+=+37%2F39+
+d+%2B+f+=+152+
-------------------
+d+=+%2837%2F39%29%2Af+
by substitution:
+%2837%2F39%29%2Af+%2B+f+=+152+
+37f+%2B+39f+=+152%2A39+
+76f+=+5928+
+f+=+78+
I get 78 frogs in the pond