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Diano4ka-milaya [45]
3 years ago
9

How many 0.4-liter glasses of water does it take to fill up a 3.4 -liter pitcher? Please help

Mathematics
2 answers:
Nadusha1986 [10]3 years ago
8 0
0.4n=3.4

n=3.4/.4
 n=8.5
Hatshy [7]3 years ago
7 0
Let n = number of glasses needed
1 glass gives us 1*0.4 = 0.4 liters of water
2 glasses give us 2*0.4 = 0.8 liters
3 glasses give us 3*0.4 = 1.2 liters
4 glasses give us 4*0.4 = 1.6 liters
and so on...
In general, 
n glasses give us n*0.4 = 0.4*n liters of water

So 0.4*n is going to be the same as 3.4 as we want to fill the 3.4 liter pitcher.
Set 0.4*n equal to 3.4 and solve for n

0.4*n = 3.4
0.4*n/0.4 = 3.4/0.4 <<--- divide both sides by 0.4
n = 8.5

If we want n to be a whole number, then round up to the nearest whole number. So we'll need 9 full glasses of water to fill the 3.4 liter pitcher. There is extra water in this case which isn't used. 

So the answer is either 8.5 or 9 depending on if your teacher wants you to round to the nearest whole number.
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Answer:

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Step-by-step explanation:

Given

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Per year growth of the tree in meters can be determined by dividing the total length of a tree i.e. 3/4 meters by the total time taken by the tree to get 3/4 taller.

Per year growth of tree = Total Length  / Total time to grow

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                                        = [3×5] / [4×16]

                                        = 15/64 meters

Therefore, the tree grew 15/64 meters per year.                  

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Given that,

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