A chemist is mixing 30% salt solution with a 15% salt solution to make 30 L of a new solution that will contain 20% salt. How much of each of the original solution should the chemist use?

Abus ride for a senior citizen cost $1.25. a monthly pass costs $35. write and inequality that represents the number of times a senior citizen must ride the bus for the monthly pass to be a better deal.

Consider the set of all four-digit positive integers less than 2000 whose digits have a sum of 24. what is the median of this set of integers?

What is the 17th term in the arithmetic sequence in which a6 is 101 and a9 is 83