Samira ran 3 more miles than twice the number of miles ada ran.
which statement makes this comparison using the correct variable expression?
a. if ada ran m miles, then samira ran m/2 + 3 miles.
b. if ada ran m miles, then samira ran 3m + 2 ⁢ miles.
c. if ada ran m miles, then samira ran 2m + 3 ⁢ miles.
d. if ada ran m miles, then samira ran 2 (3) +m ⁢ miles.

'twice the number of miles Ada ran' = 2 × Ada
'three more miles than twice the number of miles Ada ran' = [2 × Ada] + 3 

Let the number of miles Ada ran be 'm'
The expression is 2m+3

Correct C

Sometimes life is like a tunnel. you can’t always see the light at the end of the tunnel, but if you keep moving, you will come to a better place

Answer

1 number

explanation

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.