SOLUTION: On the sixth day of her trip dora spent 3/10 of her savings. A week later she only had 1/3 of her money remaining. If she spent $1155 during that week, what amount had she origina

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Question 1148785: On the sixth day of her trip dora spent 3/10 of her savings. A week later she only had 1/3 of her money remaining. If she spent $1155 during that week, what amount had she originally saved for the trip.
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Answer by greenestamps(13195) About Me  (Show Source):
You can put this solution on YOUR website!


She spent 3/10 of her savings before the beginning of that week; she had 7/10 of her savings left.

At the end of that week, she had 1/3 of her savings left.

The difference between the beginning and end of the week was $1155:

%287%2F10%29x-%281%2F3%29x+=+1155

Solve using basic algebra....