Chapter 4, Problem 8STP

To determine

To find: the number of weeks J haveto save to reach $\$175$ .

Answer to Problem 8STP

It will takeJ13 weeks before the balance in his savings account is $\$175.$

Explanation of Solution

Given: $\$10w=\$175-\$45$

Calculation:

Given equation: $\$10w=\$175-\$45$

To solve the given equation:

  $\begin{array}{l}10w=175-45\hfill \\ 10w=130\hfill \end{array}$

10w = 130

Dividing both side with 10,

  $\begin{array}{l}\frac{10w}{10}=\frac{130}{10}\hfill \\ w=13\hfill \end{array}$

Conclusion:

Hence, it will takeJ13 weeks before the balance in his savings account is $\$175.$