Friday

March 27, 2015

March 27, 2015

Posted by **Adi** on Saturday, March 3, 2012 at 3:33am.

How many marbles did jose start with?

- math -
**BOB**, Saturday, March 3, 2012 at 9:46amx= total marbles

x-(1/4)x what he had after 1st round

(x-(1/4)x)-1/3(x-(1/4)x) what he had left after 2nd

(x-(1/4)x)-1/3(x-(1/4)x)-1/2((x-(1/4)x)-1/3(x-(1/4)x)) what he had left after 3rd round which equals 2 (the one he gave to Shavana and the one he kept)

(x-(1/4)x)-1/3(x-(1/4)x)-1/2((x-(1/4)x)-1/3(x-(1/4)x))=2

solving:

x-(1/4)x-(1/3)x+(1/12)x-(1/2)x+(1/8)x+(1/6)x-(1/24)x=2

Factoring out x and making like fractions

x(1-6/24-8/24+2/24-12/24+3/24+4/24-1/24)=2

x(24/24-6/24-8/24+2/24-12/24+3/24+4/24-1/24)=2

x(33/24-27/24)=2

(1/4)x=2

x=8

SO HE START WITH 8

he lost 2 the first round leaving him with 6

he lost (1/3) of 6 the 2nd round leaving him with 4

and he lost (1/2) the 3rd round leaving him with 2

**Answer this Question**

**Related Questions**

Algebra - While playing marbles, your first opponent won half your marbles plus ...

MATH - Allen started out with x marbles. He doubled his number of marbles by ...

Discrete Math - A bag contains 5 red marbles, 4 yellow marbles, 3 green marbles...

Math - a bag contains 3 red marbles, 5 blue marbles, 2 yellow marbles, and 2 ...

math - in a jar of 40 marbles there are 12 red marbles 19 blue marbles and there...

math - A bag contains x marbles. Half of the marbles are blue. Four less than ...

Math - Yes, it is I again, with yet another math problem. The question is; In a ...

math - May has 10 fewer marbles than Albert. May has 5 more marbles than Jenny...

probability - A set of five marbles is selected (without replacement) from a bag...

math - George has a bag of marbles. Inside the bag are 5 red marbles, 3 green ...