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30 votes
30 votes
Sally is older than Jenny. The sum of their ages is 45 and the difference is 9. Find the ages of Sally

and Jenny

User Stephen Ostermiller
by
1.9k points

1 Answer

18 votes
18 votes

Answer:

Sally is 27

Jenny is 18

Explanation:

using algebra:

x+(x-9)= 45

x+x-9

2x-9=45

2x-9+9=45+9

2x=54

54÷2=27

Sally = 27

27-9 = 18

Jenny = 18

This should be it!

hope this helps :)

User Andyengle
by
2.4k points