Phillipians413 Phillipians413

19-05-2023
Mathematics

Answered

Carmen purchased a prepaid phone card for $30.00. Calls cost 15 cents a minute using this card. The credit, C (in dollars), left on the card after it is used for x
minutes of calls is given by the following function.
C(x)-30.00-0.15x
How much credit is left on the card after Carmen uses it for 50 minutes of calls?
dollars

Answer :

Other Questions

The weekly salaries (in dollars) for 9 employees of a small business are given below. (Note that these are already ordered from least to greatest.) 547, 596, 64

An object is launched from a platform. Its height (in meters), � xx seconds after the launch, is modeled by: ℎ ( � ) = − 5 ( � − 4 ) 2 + 180 h(x)=−5(x−4) 2 +

It is given that |x-9|+5>5 and x is an integer. Find the values of x

Function m is nonlinear and m(4) = 9. Which equation could represent function m? a. m(x)=9 b. m(x)=/x+1 c. m(x)=x^2-7 d m(x)=2/3x-2

A study of the effect of television commercials on 12-year-old children measured their attention span, in seconds. The commercials were for clothes, food, and t

Graph the parabola. y=(x-2)²-1 Plot five points on the parabola: the vertex, two points to the left of the vertex, and two points to the right of the vertex. Th

Suppose that the time required to complete a 1040R tax form is normal distributed with a mean of 110 minutes and a standard deviation of 10 minutes. What propor

Complete the rule for the number of miles walked by each student. Enter your answers in the boxes. Mario: Start at 6 and add . Lila: Start at 12 and add

Evaluate: 10 1° 4(1.5)n-1 S=?

The amount of a radioactive material changes with time. The table below shows the amount of radioactive material (t) left after time t: t(hours) 0 1 2 f(t) 100