Y + S + D = 99
D = 3Y
S = Y + 9
Substitute
Y + Y + 9 + 3Y = 99
5Y + 9 = 99
5Y = 90
Y = 18
D = 54
S = 27
Candice H.
asked 10/10/18Yoko, shen, and David have a total of $99 in their wallets. David has 3 times what yoko has. Shen has $9 more then Yoko. How much does each have?
Y + S + D = 99
D = 3Y
S = Y + 9
Substitute
Y + Y + 9 + 3Y = 99
5Y + 9 = 99
5Y = 90
Y = 18
D = 54
S = 27
Get a free answer to a quick problem.
Most questions answered within 4 hours.
Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.