alexandermoulton2
alexandermoulton2 alexandermoulton2
  • 22-06-2021
  • Mathematics
contestada

a phone company uses the expression 1.25 + 0.10m to calculate the cost of a phone call that lasts m minutes. what is the cost of a call that lasts 20 minutes?

Respuesta :

MrRoyal
MrRoyal MrRoyal
  • 27-06-2021

Answer:

[tex]f(20) =3.25[/tex]

Step-by-step explanation:

Given

[tex]f(m) = 1.25 + 0.10m[/tex]

Required

[tex]f(20)[/tex]

We have: [tex]f(m) = 1.25 + 0.10m[/tex]

Substutute 20 for m

[tex]f(20) =1.25 + 0.10*20[/tex]

[tex]f(20) =1.25 + 2[/tex]

[tex]f(20) =3.25[/tex]

Answer Link

Otras preguntas

Which factorization can be used to identify the real zeros of the function f(x)=-20x^2+23x-6?
a group of employees wishes to start a union is that lawful or unlawful explain
$800 is deposited in an account that pays 9% annual interest compounded annually. Find the balance after four years
How do you do this problem? SImple and concise answer please! PLEASE HELPPPPPPPPP
Explain how to find the mean, mad, and absolute deviation.​
Line ab contains A (-2,3) and B (4,5) AB has a slope that
What do we call a break in the crust which allows rocks to move?
What is one function of roots? A. to take in sugar from soil B. to take in minerals from soil C. to release water into soil D. to perform photosynthesis
Which economic system’s central goal is to better society by means of shared property and wealth?
Divide 120 in the ratio of 1:2