Question

Q. Subtracting 10% from X is the same as multiplying x by what number?​

Answer 1

Answer:

90% or 9/10

Step-by-step explanation:

let no. be a

x-10/100*x=x*a

9x/10=x*a

a=9/10 or 90%

Answer 2

We have to multiply 0.9 with x

Given : Subtracting 10% from x

To find : The number to be multiplied with x to get equivalent result.

Solution :

We can simply solve this mathematical problem by using the following mathematical process. (our goal is to calculate the the required number)

Now, 10% of x :

= x × 10%

= x × (10/100)

= x/10

Now, subtracting 10% of x from x itself :

= x - (x/10)

= (10x - x)/10

= 9x/10

So, the final result is = 9x/10

Now,

= 9x/10

= (9/10) × x

= 0.9 × x

Hence, we have to multiply 0.9 with x