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Answer :
Final answer:
Jodi, Anna, and Susie had a total of $42. Anna had $12.
Explanation:
In this problem, we are given that Jodi, Anna, and Susie had a total of $42. Additionally, we are given that Jodi had twice as much as Anna and Anna had twice as much as Susie. We are asked which girl had $12.
Let's assign variables:
- J = amount of money Jodi had
- A = amount of money Anna had
- S = amount of money Susie had
From the problem, we can set up these equations:
- J = 2A
- A = 2S
- J + A + S = 42
Substituting the second equation into the first equation, we get J = 2(2S) = 4S. Substituting J = 4S and A = 2S into the third equation, we have 4S + 2S + S = 42. Simplifying the equation, we get 7S = 42, which means S = 6.
Therefore, Susie had $6. Since Anna had twice as much as Susie, Anna had $6 x 2 = $12. Thus, Anna had $12.
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