85 is 40% of what number
a: 212.5
b: 47.1
c: 34
d: 45

A: 212.5

Step-by-step explanation:

1. We assume, that the number 212.5 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 212.5 is 100%, so we can write it down as 212.5=100%.  

4. We know, that x is 40% of the output value, so we can write it down as x=40%.  

5. Now we have two simple equations:

1) 212.5=100%

2) x=40%

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:

212.5/x=100%/40%

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 40% of 212.5

212.5/x=100/40

(212.5/x)*x=(100/40)*x       - we multiply both sides of the equation by x

212.5=2.5*x       - we divide both sides of the equation by (2.5) to get x

212.5/2.5=x  

85=x  

x=85

212.5

Step-by-step explanation:

is/of=%/100

plants store their excess carbohydrate in the form of starch so that it could be used as energy source later on. the excess carbohydrate is converted into starch in the plastid i.e. chloroplast & this process occurs in the presence of sunlight. it is an insoluble polymer of glucose which gets stored in cell organelles named as amyloplasts. in some plants, starch is also stored in roots and embryos.