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b ate 10 carrots and 7 chocolates, total cals were 263. f ate 4 carrots an 8 chocolates, total cals were 230. how many cals were in a carrot and a chocolate?

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1 Answer

Solve one equation to x or y then plug that equation into the other equation and solve. I made the first equation to solve for carrots.

10x+7y=263

10x=263-7y

x=(263-7y)/10.   Carrots equation

 

4x+8y=230

4 [(263-7y)/10] +8y=230 solve for y which will be the calories from chocolate

Then when you find y plug that answer into one of the equations to get the calories from carrots