##### Need help with my math i just don't get it.

label Algebra
account_circle Unassigned
schedule 1 Day
account_balance_wallet \$5

3/7 of what number is 9?

Jun 3rd, 2015

Thank you for the opportunity to help you with your question!

--------------------------------------------------------------------------------------

Let that unknown number be x.

$\frac{3}{7}\times x=9\\ \\ Multiply\hspace{5}both\hspace{5}sides\hspace{5}by\hspace{5}7\\ \\ \frac{3}{7}\times x\times7=9\times7\\ \\ 3x=63\\ \\ Divide\hspace{5}both\hspace{5}sides\hspace{5}by\hspace{5}3\\ \\ \frac{3x}{3}=\frac{63}{3}\\ \\ x=21$

So, the number is 21.

-----------------------------------------------------------------------------

Please let me know if you need any clarification. I'm always happy to answer your questions.
Jun 3rd, 2015

...
Jun 3rd, 2015
...
Jun 3rd, 2015
Oct 23rd, 2017
check_circle
Mark as Final Answer
check_circle
Unmark as Final Answer
check_circle