Olivia is brewing tea. She starts boiling 0.455 L of water in a kettle. The change in volume of the contents of the kettle are n
oted below. First, Olivia adds tea leaves. This increases the volume of the contents by 0.056 L. After a few minutes of brewing, evaporation brings the volume down by 0.004 L. Finally, Olivia pours herself a cup, which reduces the volume of the contents of the kettle by 0.168 L. What is the volume of the contents of the kettle after Olivia pours herself a cup of tea? A. 0.227 L B. 0.287 L C. 0.339 L D. 0.347 L
We will use a system of equation for this one. P=Peanuts; C=Cashews P+C=20 This represents the pounds. 10P+9C=191 We can make the first equation equal C. C=20-P 10P+9(20-P)=191 10P+180-9P P+180=191 P=11 There are 11 pounds of peanuts, which means there's 9 pounds of cashews.
