SOLUTION: Krista weighs eight times as much as her baby sister. When their weights are combined, they weigh 54 kg. How much does Krista weighs?

Question 760518: Krista weighs eight times as much as her baby sister. When their weights are combined, they weigh 54 kg. How much does Krista weighs?
Answer by ramkikk66(644) (Show Source): You can put this solution on YOUR website!
Let the baby sister's weight be kg
Then, Krista's weight = as given in the problem.
Combined weight =
or

Dividing both sides by 9,

So, baby sister weighs 6 kg
Krista's weight = kg
Got it?

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