Question

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

and Jenny

Answer 1

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 :)