Chapter 4.4, Problem 45HP

To determine

To writea real-world example that contains decimal and fraction

Answer to Problem 45HP

The amount given by R toL is $6.2

Explanation of Solution

Calculation:

Example:

R gives some money to L. L already has an amount which is half of what R gavehim. Now totally L has $9.30. Find the amount R gives L.

Let the amount be $x$

From problem,

  $x+\frac{x}{2}=9.3$

  $x\left(1+\frac{1}{2}\right)=9.3$

Add the fraction

  $\frac{3}{2}x=9.3$

Multiply both sides with $\frac{2}{3}$

  $x=9.3\cdot \frac{2}{3}$

  $x=6.2$

The amount given by R toL is $6.2

Conclusion:

Therefore, the amount given by R toL is $6.2