Vivian L. answered • 02/12/14
Tutor
3
(1)
Microsoft Word/Excel/Outlook, essay composition, math; I LOVE TO TEACH
Hi Angelica;
The short way, I can see immediately that x=30.
The long way...
3/10=x/100
Let's cross-multiply...
(3)(100)=300
(10)(x)=10x
300=10x
Let's divide both sides by 10...
300/10=10x/10
30=x
