Answer:
$ 560
Step-by-step explanation:
Fred spends [tex]\frac{15}{20}[/tex] of his earnings, which simplifies to [tex]\frac{3}{4} \:or\: 75%.[/tex] Therefore, he saves [tex]1 - \frac{3}{4} = \frac{1}{4} \:or \:25%.[/tex]
Given Fred's weekly take-home pay is $560, he saves [tex]\frac{1}{4}[/tex] of this amount:
[tex]\text{Amount saved each week} = \frac{1}{4} \times 560 = 140[/tex]
To find out how much he saves in four weeks:
[tex]\text{Amount saved in four weeks} = 4 \times 140 = 560[/tex]
