7. Find the value of the following.
i. 3.75% of 1000 litres
Answers
Answer:
375/10000 of 1000 litres
37.5litres
Answer:
To get the solution, we are looking for, we need to point out what we know.
1. We assume, that the number 1000 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 1000 is 100%, so we can write it down as 1000=100%.
4. We know, that x is 3.75% of the output value, so we can write it down as x=3.75%.
5. Now we have two simple equations:
1) 1000=100%
2) x=3.75%
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:
1000/x=100%/3.75%
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 3.75% of 1000
1000/x=100/3.75
(1000/x)*x=(100/3.75)*x - we multiply both sides of the equation by x
1000=26.666666666667*x - we divide both sides of the equation by (26.666666666667) to get x
1000/26.666666666667=x
37.5=x
x=37.5
now we have:
3.75% of 1000=37.5