12 and -1 are two numbers that multiply to -12 and add up to 11
5(3y)-y=75 -> 15y-y=75 -> 14y= 75 -> y= 75/14
3(75/14)=x -> x= 225/14 and y= 75/14
I'm completely wrong but i tried
She spent 10 minutes. 25% x 40 = 10.
The answer is 2/7 or 0.28571428... You can find this the same way as your other problem by finding the common denominator and multiplying. (Also, if you go on Mathway, you can find solutions to almost any problem really quickly.)
Hope this helps!
~Jessica
If you give me the options I can give the answer to you.
