Posted by **Tonya** on Monday, August 12, 2013 at 8:32pm.

becca received some money for her birthday. she spent 2/5 then she spent 1/2 the she spent 2/3 and had $15 left . how much did you receive for her birthday

- math -
**Jai**, Monday, August 12, 2013 at 11:43pm
To do this, you have to work backwards. That is, starting from the $15 left. Note that she spent 2/3 of her money and had $15 left. Therefore, this $15 is actually 1/3 of the money she had:

1/3 of something = 15

To do this, just divide 15 by 1/3:

15 / (1/3) = 15*3/1 = $45

And then she spent 1/2. This means that the other half is actually $45:

1/2 of something = 45

Divide:

45 / (1/2) = 45*2 / 1 = $90

And finally, she spent 2/5 of the original money, and had $90 left. Thus this $90 is actually 3/5 of her money:

3/5 of something = 90

Divide:

90 / (3/5) = 90*5/3 = $150 (original amount of money)

Hope this helps~ :)

## Answer This Question

## Related Questions

- Math - Carmen received some money for her birthday on Friday. That night, she ...
- 6th Grade Math - Carmen recieved some money for her birthday on Friday. That ...
- Math - Julia spent 1/3 of her birthday money. Then she lost 1/2 of the rest. She...
- math - Your great uncle gave you $2 on your first birthday, $4 on your 2nd ...
- math - Your great uncle gave you $2 on your first birthday, $4 on your 2nd ...
- Math - Keith spent 60% of his birthday money at the game store. If he spent $36 ...
- Math - Keith spent 60% of his birthday money at Game Stop. If he spent $36 at ...
- Math - A merchant visited 3 fairs. At the first, he doubled his money and spent...
- math - Emily spent 1/2 of her money at the grocery store. Then, she spent 1/2 of...
- math - Chris received $1 on his first birthday,$3 on his second birthday,$6 on ...

More Related Questions