Wednesday

July 23, 2014

July 23, 2014

Posted by **Ruby** on Saturday, November 5, 2011 at 8:47am.

- Math -
**tchrwill**, Saturday, November 5, 2011 at 9:17amIf she had 6 left after giving 3/5 to her children, she had 6/(2/5) = 15 to start.

If she had 15 left after giving 1/4 to her neighbors, she had 15/(3/4) = 20 to start.

If she had 20 left after giving 1/2 to her sister, she had 20/(1/2) = 40 to start out with in the first place.

Check:

40 - 20 = 20

20 - 5 = 15

15 - 9 = 6

Everybody is happy.

Alternatively:

X - X/2 = X/2

X/2 - (X/2)(2/5) = 3X/8

3X/8 - (3X/8)(3/5) = 6X/40 = 6

6X = 240 or X = 40.

**Related Questions**

5th grade - Please, someone help me ,I don't know how and what to do to find the...

math - jasmine bought 26 pieces of fruit.she bought 6 oranges.she bought twice ...

math - Alex spent 3/7 of his money. He gave 1/4 of the remainder to his sister. ...

maths - PLS HELP!!!! Some children were sharing oranges. If each child took 3 ...

Maths - Some children were sharing oranges. If each child took 3 oranges, there ...

math - K bought some marbles and gave half of them to L. bought some stamps and ...

math - 5/12 of my salary was spent on food, then I gave 3/7 of the remainder to ...

math - a woman had 400 oranges in a basket. after selling 1/5 of them, she found...

Math - Sophia buys an eqaul number of oranges and pears for a party. The oranges...

math - rudy went to the mall to spend some of his money he earned. he spent 1/3 ...