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DerKrebs [107]
3 years ago
12

What is 2/9 of 54???????

Mathematics
1 answer:
Grace [21]3 years ago
4 0

To get the solution, we are looking for, we need to point out what we know.  

1. We assume, that the number 54 is 100% - because it's the output value of the task.  

2. We assume, that x is the value we are looking for.  

3. If 54 is 100%, so we can write it down as 54=100%.  

4. We know, that x is 2.9% of the output value, so we can write it down as x=2.9%.  

5. Now we have two simple equations:

1) 54=100%

2) x=2.9%

where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

54/x=100%/2.9%

6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 2.9% of 54

54/x=100/2.9

(54/x)*x=(100/2.9)*x       - we multiply both sides of the equation by x

54=34.48275862069*x       - we divide both sides of the equation by (34.48275862069) to get x

54/34.48275862069=x  

1.566=x  

x=1.566

now we have:  

2.9% of 54=1.566

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