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Maths Puzzle
Numerical Ability
It takes Jim 6 hours longer to fly the 1125 miles from Montreal, Canada to Birmingham, Alabama, in his Piper Cub than it does in his jet. If his average speed in the jet is 3 times that in the Piper Cub, What is the average speed of the Piper Cub? __mph
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2. Give the domain of h={(-1,4),(2,7),(3,7)}, and tell if h is a function.
a. {4,7}; h is a function
b. {4,7}; h is not a function
c. {-1, 2, 3}; h is a funct
how is y=5x+6 similar to -18x+3y=-54