The time, t(in minutes), you need to type a certain paper varies inversely with the rate, r (word per minute), that you can type. When typing 40 words per minute, you can finish in 50 minutes. Find the constant of proportionality and write and equation relating t and r.

Type the correct answer in each box. spell all words correctly. a sequence of transformations maps ∆abc onto ∆a″b″c″. the type of transformation that maps ∆abc onto ∆a′b′c′ is a . when ∆a′b′c′ is reflected across the line x = -2 to form ∆a″b″c″, vertex of ∆a″b″c″ will have the same coordinates as b′.

The graph of a hyperbola is shown. what are the coordinates of a vertex of the hyperbola? (0, −4) (−3, 0) (0, 0) (0, 5)

When a valve is open 281 gallons of water go through it in one hour the number of gallons that would go through in 94 hours is