You are making 100 mL of a saline solution in science class that has a strength of 50%. You are going to mix some 40% saline solution with some 60% saline solution to do this.
How much of each should you add?

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PLEASSE GUVE EXPLANATION

When using the linear combination metho e linear combination method to solve a system of linear equations, the four options are:

Atravel agent is booking a trip to england, scotland, ireland, and france for a group of senior citizens. the agent sent surveys to the group, asking which countries they would like to visit, in order, and created the shown preference schedule (e = england, i = ireland, s = scotland, f = france). which country is the condorcet winner? number of votes 15 12 16 19 1st f e e i 2nd e s i s 3rd s i s e 4th i f f f 1. scotland 2. england 3. france 4.ireland

Tom travels between the two mile markers shown and then finds his average speed in miles per hour. select the three equations that represent this situation.