Answer:
Amount left for gift C = [tex]4\frac{19}{20}[/tex] dollars
Step-by-step explanation:
Given that:
Amount Cora have to spent on gifts = $20
Amount spent on gift A = [tex]11\frac{1}{4}=\frac{45}{4}[/tex] dollars
Amount spent on gift B = [tex]3\frac{4}{5}=\frac{19}{5}[/tex] dollars
Amount spent on gift C = x
Total amount = Gift A + Gift B + Gift C
20 = [tex]\frac{45}{4}+\frac{19}{5}+x[/tex]
20 = [tex]\frac{225+76+20x}{20}[/tex]
[tex]400=301+20x\\400-301=20x\\99=20x\\20x=99\\[/tex]
Dividing both sides by 20
[tex]\frac{20x}{20}=\frac{99}{20}\\\\x=4\frac{19}{20}[/tex]
Hence,
Amount left for gift C = [tex]4\frac{19}{20}[/tex] dollars
