Question

63 is 90% of what number? using double number lines to get the answer

Answer 1

Since the 90% is 63. divide it by 9. then you would get value of 7. then multiple it by 10.
which is equal to 70. so 100% is 70.

Answer 2

Answer:

70.

Step-by-step explanation:

Let x be the required number.

We are asked to find the number whose 90% equals to 63.

We can represent our given information in an equation as:

$\frac{90}{100}\cdot x=63$

Now, we need to solve for x.

$0.90x=63$

$\frac{0.90x}{0.90}=\frac{63}{0.90}$

$x=70$

Therefore, 90% of 70 is 63.