Hello!

This is from the 2007-2008 test released by collegeboard from section 2 question 17.

THe graph above shows the amount of water remaining in a tank each time a pail was used to remove x gallons of water. If 5 gallons were in tank orginially and 5/3 gallons remained after the last pail containing x gallons was removed, what is the value of x?

Thank you!

Umm…I think you mistyped this (or just miscalculated the mixed fraction). The original question says gallons are left. That’s not 5/3, that’s 7/3!

Anyway, the graph tells you that 8 pails were removed. And you know that 5 – 7/3 = 8/3 gallons were removed in total. 8 pails totaling 8/3 gallons means each pail was 1/3 of a gallon.