Roy had 5 times as much money as Shane. Roy spent $54 and Shane had twice as much as Roy in the end. How much did Roy have at first?
YOU MUST DO: Cut the units in the model drawing into smaller parts.
Roy had 5 times as much money as Shane. Roy spent $54 and Shane had twice as much as Roy in the end. How much did Roy have at first?
Hello Abcyacomga!
\(r=5s\\ s=(r-54)\cdot 2\\ s=(5s-54)\cdot 2\\ s=10s-108\\ -9s=-108\\ s=12\\ r=5\cdot 12\\ \color{blue}r=60 \)
Roy started out with $ 60.
!