Who can help me with this math probelem??

Liz bought a box of 15 cookies. If she ate of the box and kelly ate of the box, how many cookies did they eat all together?

Answer #1

If they divided it equally, it would be 7 cookies and a half each. :]

Answer #2

How much did they eat by themselves?Makes no sense.Sorry.Explain more.

Answer #3

If she ate of the box and Kelly ate of the box…

There simply has to be more to this equation.

Answer #4

oh man! I said how much, but FA took it off! I copied and pasted it right from the website :

Liz bought a box of 15 cookies. If she ate one fifth of the box and Kelly ate two fifths of the box, how many cookies did they eat all together?

Answer #5

well… if we are talking about fifths, then we divide the number of cookies by 5. 15/5=3.

so liz are one fifth so she ate 3. and kelley ate two fifths so she ate 6. (3+3=6) so they ate 9 all together.

Answer #6

the answer is 9, because if its one fifth, 15 needs to be divided by five, which is three. 1 x 3 is 3 and 2 x 3 is 6 so 6 + 3 = 9.

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