A circular running track is 1/4 mile long. Elena runs on this track, completing each lap in 1/5 of an hour. What is Elena's running speed?

Follow these steps using the algebra tiles to solve the equation −5x + (−2) = −2x + 4. 1. add 5 positive x-tiles to both sides and create zero pairs. 2. add 4 negative unit tiles to both sides and create zero pairs. 3. divide the unit tiles evenly among the x-tiles. x =

According to the general equation for conditional probability if p(anb)=3/7 and p(b)=7/8 what is p(a i b)

One cell phone plan charges $20 per month plus $0.15 per minute used. a second cell phone plan charges $35 per month plus $0.10 per minute used. write and solve an equation to find the number of minutes you must talk to have the same cost for both calling plans.