exam
Maths Puzzle
Numerical Ability
3/7x + 5/9y = 27
1/9x + 2/7y = 7
Solve each system by the addition method
can someone who understands this help thank you
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exam Other Question
Mario has 55 CDs. Write an expression to represent the total number of CDs he will have after 18 months if he buys x CDs per month.
Solve following system of linear inequalities by graphing
x-2y>4
x<4
x-2y>4
-2y>-x+4
y>-1/2x+2 (0,1)(2,0) Check to see if I'm right.
x<4 I'm totally lost on