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One hundred families each have 2 fish. Each fish has either one stripe or two stripes. In total, there are 273 stripes. How many one-striped fish are there in total?

 Feb 21, 2021
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Let x be the number of one striped fish and y be the number of two striped fish.

 

one hundred families have 2 fish ==>  x + y = 200

273 stripes total ==> x + 2y = 273

 

Multiply the first equation by 2:

 

2x + 2y = 400

x + 2y = 273

 

Subtract to find that x = 127 and y = 73.

 

So, there are 127 one-striped fish in total

 Feb 21, 2021

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