Trent can deliver his newspapers in 20 minutes. it takes lois 60 minutes to do the same route. how would it take them to deliver the newspapers together?

It takes 15 minutes for them to deliver the newspapers together

Step-by-step explanation:

Let x be the job of delivering news paper.

Rate of Trent

Rate of Lois

If they work together time required

It takes 15 minutes for them to deliver the newspapers together

51-50

step-by-step explanation:

1 number

if we use a graphing calculator, there is only one such number that satisfies the conclusion of the mean value theorem, that is, a number such that

where the right-hand side is the average rate of change of f on the interval [0.5,0.75], which is the slope of the secant line.

in the attached graph, the black line is the secant line which has its slope as the average rate of change of f on [0.5,0.75], while the orange line is the only tangent line to the graph of f in the interval that satisfies the mvt conclusion.