Two owners of a cattle ranch, Robert and Val, want to find the average weight for the ranch’s 200 cows. Instead of weighing all
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Answer:
Anna is 41 years old.
Step-by-step explanation:
Easiest way to do this is by building a equation,
Lest say Anna's age is .
Then as Peter is 3 years older than Anna Peter's age should be .
Then the combined ages of the two people is given as 85. So we can write an equation as,
(deducting 3 from both sides of the equation)
As we originally took Anna;s age as
We can say Anna is 41 years old.