SOLUTION: shawna and kali both work at the same pet store on monday shawna counts 52 birds and cats in the store for the same animals kali counts 138 legs how many birds and cats are in the

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Question 978759: shawna and kali both work at the same pet store on monday shawna counts 52 birds and cats in the store for the same animals kali counts 138 legs how many birds and cats are in the pet store.
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +b+ = number of birds in store
+52+-+b+ = number of cats in store
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+2b+ = number of the bird's legs Kali counts
+4%2A%28+52-b+%29+ = number of cat's legs Kali counts
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+2b+%2B+4%2A%28+52-b+%29+=+138+
+2b+%2B+208+-+4b+=+138+
+2b+=+208+-+138+
+2b+=+70+
+b+=+35+
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+52+-+b+=+52+-+35+
+52+-+b+=+17+
There are 35 birds and 17 cats in the store