Sally is 1 year older than 3 times the age of joe.Chirs is 5 years younger than 6 times the age of joe.If sally and Chris are th e same age,how old is joe
2 answers:
S = sally C = Chris J = Joe sally is one year older than 3 times the age of joe, so s = 3j + 1 chris is 5 years younger than 6 times the age of jo, so c = 6j - 5 sally and chris are the same age so s = c so 3j + 1 = 6j - 5 -3j -3j 1 = 3j - 5 +5 +5 6 = 3j or 3j = 6 3j/3 = 6/3 j = 2 check s = c 3(2) +1 = 6(2) - 5 6 + 1 = 12 - 5 7 = 7 correct✅
Answer: Joe is 2 years old
Step-by-step explanation:
Let x represent the age of Joe.
Sally is 1 year older than 3 times the age of Joe. It means that the age of Sally is
3x + 1
Chirs is 5 years younger than 6 times the age of Joe. It means that the age of Chris is
6x - 5
If sally and Chris are the same age, it means that
6x - 5 = 3x + 1
6x - 3x = 1 + 5
3x = 6
x = 6/3
x = 2 years
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