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borishaifa [10]
3 years ago
10

Jayla, Keisha and Melanie are sisters. Keisha is 3 years older than Jayla. Melanie is 3 years older than Keisha. If you add thei

r ages together, you get 42.
1. Write an equation or draw a picture to represent this scenario.
2. How old are the sisters? How do you know?
Mathematics
1 answer:
Novosadov [1.4K]3 years ago
8 0
Jayla= x
keisha= x+ 3
melanie= x + 6

to solve:
42= x + x + 3 + x + 6
42= 3x + 9
-9 -9
33=3x
———-
3

x=11

therefore
jayla is 11
keisha is 14
melanie is 17
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