D=RT is the formula for Distance, based on a rate and time.
16=R*23 | Divide both sides by 23.
16/23 = miles/minute = R<
.696 = R (miles/minute) |multiply by 60 to get miles/hour.
41.76 MPH.
Hope the solution helped. Sometimes you need more than a solution. Contact fcabanski@hotmail.com for online, private tutoring, or personalized problem solving (quick for groups of problems.)