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Schach [20]
3 years ago
15

Fresh raspberry contains 80% water. dried raspberry contains only 20% water. what weight of dried raspberry can you get from 36

lb of fresh berries?
Biology
1 answer:
adell [148]3 years ago
4 0

There 2 ways to solve this

1-      Directly :

80% of water in the fresh berries è 20% of water in the dried berries

36 Ibs of the fresh berries è X Ibs of the dried berries

X = \frac{36 * 20}{80}<span> = 9 Ibs</span>

 

<span>2-      </span>If you do not understand the first method, the second one is more explicit:

First, we gonna calculate the weight of the berries without water (dehydrated):

<span>36 * 80% = 28.8 Ibs    (of water in the berries)</span>

Then:

<span>36 – 28.8 = 7.2 Ibs (of completely dehydrated berries)</span>

 

Next, we gonna add 20% of water in the dehydrated berries:

X (total weight of dried berries) è 100%

7.2 Ibs of dehydrated berries è 80%

X = <span>  </span>\frac{7.2 * 100}{80}   = 9 Ibs

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