Cho had $2.85 in nickels and $3.40 in dimes. then she gave an equal number of her nickels and dimes to her brother. now cho has the same amount of money in nickels as in dimes. the equation represents the situation. which does the variable x represent?

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.

38 was the other number of your question.