Concept explainers
a.
To find:Monthly cost.
a.
Answer to Problem 74PFA
Monthly fee = $40.
Explanation of Solution
Given information:
Total fee after three months = $295
Total fee after eight months = $495
We know from given information
Total fee = Initial membership fee + Fee for
Let initial membership fee be
Let Monthly fee for one month be K.
Therefore
Total fee for
Given
Total fee for three months = $295
Total fee for eight months = $495
Subtracting equation-(2) with equation-(1)
We get
Therefore
Monthly fee =
b.
To find: Initial membership fee.
b.
Answer to Problem 74PFA
Initial membership fee = $175
Explanation of Solution
Given information:
Total fee after three months = $295
Total fee after eight months = $495
We know from given information
Total fee = Initial membership fee + Fee for
Let initial membership fee be
Let Monthly fee for one month be K.
Therefore
Total fee for
Given
Total fee for three months = $295
Total fee for eight months = $495
Subtracting equation-(2) with equation-(1)
We get
Therefore
Monthly fee =
Substituting value of K in equation-(1)
We get
Therefore
Initial membership fee =
c.
To find:Equation for the total cost C as a function of the number of months,
c.
Answer to Problem 74PFA
Equation of given situation is
Explanation of Solution
Given information:
Total fee after three months = $295
Total fee after eight months = $495
We know from given information
Total fee = Initial membership fee + Fee for
Let initial membership fee be
Let Monthly fee for one month be K.
Therefore
Total fee for
Given
Total fee for three months = $295
Total fee for eight months = $495
Subtracting equation-(2) with equation-(1)
We get
Therefore
Monthly fee =
Substituting value of K in equation-(1)
We get
Therefore
Initial membership fee =
Substituting values of K and
We get
Therefore
Equation of given situation is
d.
To find: Earnings of Paul after one year.
d.
Answer to Problem 74PFA
Paul have to pay $655 after one year.
Explanation of Solution
Given information:
Total fee after three months = $295
Total fee after eight months = $495
represents the equation of given situation
We need to find cost for 1 -year.
1 year = 12 months
Therefore
Substitute
We get
Therefore
Paul have to pay $655 after one year.
Chapter 3 Solutions
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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