exam
Maths Puzzle
Numerical Ability
how do you find the b and solution of this equation? y=-3/4x
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exam Other Question
Angela needs 20 quarts of 50% antifreeze solution in her radiator. She plans to obtain this by mixing some pure antifreeze with an appropriate amount of 40% antifreeze solution. How many quarts of each should she use?
Solve by elimination
x+y=38
175000x+200000y=7200000