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# Math

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Ben had 1/5 as many books as Jann. After Jann gave Ben 4 books, Ben had 1/3 as many books as Jann. How many books did Jann have in the end?

Apr 19, 2021

#1
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Jann has 36 books at the end!

Hope it helps!!

Apr 19, 2021
#2
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Who is that even??? And what they saying makes no sense

Guest Apr 19, 2021
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XxMysteriousGirlxX  Apr 19, 2021
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It is but how do you get 36 is what I am looking for

Guest Apr 19, 2021
#5
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I dont know how I got 36

XxMysteriousGirlxX  Apr 19, 2021
edited by XxMysteriousGirlxX  Apr 19, 2021
#6
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Yea that's what I thought huh the answer key says that

Guest Apr 19, 2021
#7
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No I swear I did not look up the question

XxMysteriousGirlxX  Apr 19, 2021
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What you mean I know thas you

you did not look up the question there is no way the question can be looked

Guest Apr 19, 2021
#9
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So...what are you saying?

XxMysteriousGirlxX  Apr 19, 2021
#10
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Given    b = 1/5 j

b+4 = 1/3 ( j -4)      sub in the red equation

1/5j  + 4  = 1/3 ( j-4)

1/5 j  + 4 = 1/3 j - 4/3

3/15 j + 4 = 5/15 j - 4/3

-2/15 j  = -4 - 4/3

j = 40    initially                       she gives away 4   to have 36 left

Apr 19, 2021
#11
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Well whatever anyways I got the solution of it.

Apr 19, 2021
#12
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Yep you do and I hope it helped you!

XxMysteriousGirlxX  Apr 19, 2021
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(x + 4) / (5x - 4) = 1/3

x = 8

5x - 4 = 36