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Helen spent one half of her money on an ice cream, and three eighths of her money on soda. If she had $7 left how much did she have to start with?

User Lubilis
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Answer: Let X be the amount of money Helen had to start with.

After spending one half of her money on ice cream, she had X - X/2 = X/2 left.

After spending three eighths of her remaining money on soda, she had X/2 - 3X/8 = 5X/8 left.

Since she had $7 left, we have:

5X/8 = 7

X = 56

So, Helen had $56 to start with.

Explanation:

User Isaac Egglestone
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