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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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Step-by-step explanation:

A linear function is defined by a line, so in order to determine the linear function we can use the two points that were given to us to create a line equation and use that as our linear function. The points given to us were (2009; 9000) and (2014; 12500), in this case the year is our value of "x" and the size of the population is our value of "y". The first step is to find the slope of the line which is given by:

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The students at Midtown Middle school sold flowers as a fundraiser in September and October. In October, they charged $1.50 for
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Let the price of flowers in September be x, then (100 + 20)/100 * x = $1.50
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