simultaneous equation poster
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Real life simultaneous Real life simultaneous equations problemsequations problems
Alaa Sharfi1/27/2012Algebra 2Ms. Rosanna
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Links to websites that Links to websites that explain how to solve explain how to solve simultaneous equations bysimultaneous equations byGraphing:http://www.bbc.co.uk/schools/
gcsebitesize/maths/algebra/simultaneoushirev2.shtml
Elimination:http://www.teacherschoice.com.au/maths_library/algebra/alg_10.htm
Substitution:http://www.teacherschoice.com.au/Maths_Library/Algebra/Alg_9.htm
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Videos to explain Videos to explain simultaneous equations simultaneous equations
Elimination:http://www.youtube.com/watch?v=XM7Q4Oj5OTc
Substitution:http://www.youtube.com/watch?v=8ockWpx2KKI
Graphing:http://www.youtube.com/watch?v=cqBwozd8nu8
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Real life sReal life simultaneous imultaneous equations problem solved by equations problem solved by EliminationElimination
7 pizzas and 5 chicken sandwiches cost $155. 10 pizzas and 8 chicken sandwiches cost $230. Find the cost of one pizza and one chicken sandwich. P= Pizza & S= chicken sandwich.
7p+5s= 15510p+ 8s= 230
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Multiply to get similar variables:8 X (7p+ 5s= 155) = 56p+ 40s = 12405 X(10p+8s= 230)= 50p + 40s =
1150
Since both s variables are positive we subtract the two equations.
56p + 40s = 1240-50p + 40s = 1150 6= 90 = 15 6 6
P=15
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Real life sReal life simultaneous imultaneous equations problem solved equations problem solved by substitutionby substitution
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Solve the following Solve the following questionquestionYou are looking to rent an apartment.
One costs $800 a month and has a $1000 deposit and the other costs $850 but has an $850 deposit. How long do you need to stay there before the first one is a better deal?