Mrs. Co is 45 years old, and her eldest daughter is 21 years old. When will Mrs. Co be 4 less than twice as old as her eldest daughter?
Representation:
Equation:
Solution:
Answer:
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Mrs. Co is 45 years old, and her eldest daughter is 21 years old. When will Mrs. Co be 4 less than twice as old as her eldest daughter?
Representation:
Equation:
Solution:
Answer:
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Verified answer
Representation:
Mrs. Co's future age: 45+x
Her daughter's future age: 21+x
Equation:
(2(21+x)) - 4 = 45+x
Solution:
Rearrange the terms: 42+2x-4 = 45+x
Simplify: x = 45 + 4 - 42 = 7
Therefore, x (the time before Mrs. Co is 4 less than twice as old as her eldest daughter) is 7.
Answer:
In 7 years, Mrs. Co will be 4 less than twice as old as her eldest daughter
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