Algebra 11-2  Solving Systems using Substitution

 

In 1-4 solve the system using substitution.

 

1.                                                 2.        

 

 

 

 

 

 

 

 

 

 

3.                                                 4.        

 

 

 

 

 

 

 

 

 

5.         Jack, the lizard, is currently 10cm long but growing 8 cm each year. 

            Tom, the snake, is currently 24 cm and growing 6 cm each year.

            How long until Jack and Tom are the same length?

 

            _________________

 

 

 

6.         Pool A has 12,000 liters of water in it, but it is losing 40 liters an hour

            from a leak.  Pool B is just starting to be filled up.  It has 2000 liters

            of water in it and is getting 210 liters put in each hour.  How long

            until the two pools have the same volume of water, and how much

            water will be in them at that point?

           

            Time = _____________          Volume of water ________________