If the typical balance on lucy's credit card is $650 and the interest rate (apr) on her credit card is 18%, how much in interest would you expect lucy to be charged in a typical month

$9.75

Given:  

Question:  

How much in interest would you expect Lucy to be charged in a typical month?

The Process:  

This problem includes the type of determining simple interest.

where,

This time we will find out how much in interest we would expect to be charged in a typical month.

The data is as follows:

Let us calculate how much in interest we would expect to be charged in a typical month.

Thus the amount of interest we would expect Lucy to be charged in a typical month is $ 9.75.

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Notes  

We must be able to distinguish between simple and compound interest. Please learn about this in the link attached below.

Lucy is expected to be charged by the interest amount of in a month.

Explanation:

The simple interest is the interest that is charged on loan amounts or any other payments made which are lapsed for certain time duration.

The simple interest on the principal amount at rate percentage for time duration of years is calculated by the formula as shown below.

The typical balance on Lucy’s credit card is so the interest has to be charged on this value only. Hence, the principal amount is .

There are 12 months in a year so if the interest is charged as per month basis, the time of one month is taken as years.

Substitute 650 for , \frac{1}{12} for and 18 for to obtain the interest charged at a rate of 18% per annum.

Thus, the interest charged at Lucy’s credit card is per month.

Learn More:

1. Learn more about algebraic expression

2. Learn more about linear equation application

3. Learn more about equations

Answer Details:

Grade: Middle School

Subject: Mathematics

Chapter: Simple Interest

Keywords: simple interest, interest, rate, time duration, months, years, rate percentage, principal, amount, credit card, Lucy.

i think is g(1)=-1.

hope that i can

answer:   x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

x² - 6x + 9 = 11

(x - 3)² = 11

x - 3 = ±√11

    x = 3 ± √11

x = 3 + √11     and     x = 3 - √11