Math Problem Statement

Advice from most financial advisers states to spend no more than​ 28% of​ one's gross monthly income for​ one's mortgage​ payment, and to spend no more than​ 36% of​ one's gross monthly income for​ one's total monthly debt. Suppose a family has a gross annual income of ​$46,800.

a. What is the maximum amount the family should spend each month on a mortgage​ payment?

b. What is the maximum amount the family should spend each month for total credit​ obligations?

c. If the​ family's monthly mortgage payment is 70% of the maximum they can​ afford, what is the maximum amount they should spend each month for all other​ debt?

Solution

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Math Problem Analysis

Mathematical Concepts

Percentage Calculation
Algebra

Formulas

Gross monthly income = Gross annual income / 12
Maximum mortgage payment = 0.28 × Gross monthly income
Maximum total debt = 0.36 × Gross monthly income
Actual mortgage payment = 0.70 × Maximum mortgage payment
Maximum for other debt = Maximum total debt - Actual mortgage payment

Theorems

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Suitable Grade Level

Grades 9-11