# To express: the given quantity in terms of the indicated variable.

### Precalculus: Mathematics for Calcu...

6th Edition
Stewart + 5 others
Publisher: Cengage Learning
ISBN: 9780840068071

### Precalculus: Mathematics for Calcu...

6th Edition
Stewart + 5 others
Publisher: Cengage Learning
ISBN: 9780840068071

#### Solutions

Chapter 1.6, Problem 11E
To determine

## To express: the given quantity in terms of the indicated variable.

Expert Solution

0.025x .

### Explanation of Solution

Given:

The given quantity is “the interest obtained after one year on an investment 212 simple interest”.

x is number of dollar invested.

Concept used:

Interest received on investment amount P at a rate r for a time period t is given by I=Prt .

Calculation:

According to question, interest received on investment amount x at a rate 212 for a time period of one year.

Therefore, interest received on investment is

I=x×52×1100=x×52×1100=x×2.5100=0.025x

Hence, the interest obtained after one year on an investment is 0.025x .

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