How many gallons of pure water must be added to 10 gal of 30% salt water to make a solution that is 25% salt water?

What value of x will make the triangles similar by the sss similarity theorem?

He ! a group of farmers planned to clean 80 acres of wheat per day to finish the work on schedule. right before the work started, they received a new piece of machinery that them clean 10 more acres per day than originally planned. as a result of increased productivity in the last day before the deadline they only had to clean 30 acres. how many acres of wheat did the group of farmers have to clean?

What is the missing reason in the proof? segment addition congruent segments theorem transitive property of equality subtraction property of equality?