exam Maths Puzzle Numerical Ability

Assume that y varies inversely as x. If y = 3.2 when x =0.2, find y when x =1.6

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exam Other Question

tickets for homecoming dance cost $20 for a single ticket or $35 for a couple. ticket sales totaled $2280, and 128 people attende. how many tickets of each type were sold? The demand equation for a certain type of printer is given by D= -200p + 35,000
The supply equation is predicted to be S= -p^2+400p-20,000
Find the equilibrium price.