The bill in a restaurant totaled to $45.50. we wanted to give a tip of 20%. how much money did we pay altogether.

$54.60

Step-by-step explanation:

The total bill is $45.50, with a 20% tip on it.

45.50(1.20)

Answer is $54.60

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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.