How many milliliters of water must be added to 145 ml of 40% salt solution to produce a 30% solution?
Round your answer to the nearest hundredth.

Solve the following: 12(x^2–x–1)+13(x^2–x–1)=25(x^2–x–1) 364x–64x=300x

Solve the problem by using a venn diagram a group of students were surveyed about their taste in music. they were asked how they like three types of music: rock, country western and jazz. the results are summarized below: no one dislikes all three types of music. six like all three types of music. eleven don’t like country western. sixteen like jazz. three like country western and jazz, but not rock. six don’t like rock. eight like rock and country western. seven don’t like jazz. how many students were surveyed?

The speeders soccer team charged $12 to wash each car at a fundraiser car wash. the team collected a total of $672 by the end of the day. how many cars did the deal wash?