Maths

• October 2nd 2012, 08:10 AM
Spixol123
Maths
If 3/10 of a number is 15, how much is 6 times that number?
• October 2nd 2012, 08:41 AM
MarkFL
Re: Maths
How can we write "3/10 of a number is 15" as an equation?
• October 2nd 2012, 08:51 AM
Spixol123
Re: Maths
3/10x15/1
• October 2nd 2012, 09:08 AM
MarkFL
Re: Maths
Let $x$ represent the number, since we don't know what it is. We are told that if we multiply this number by 3/10, the result is 15:

$\frac{3}{10}\cdot x=15$

Now, we may solve this for $x$.
• October 2nd 2012, 09:13 AM
Spixol123
Re: Maths
thanks