Answer:
-9.33333333
Step-by-step explanation:
(2/30)x(9-10)+(2/3)x(-4) is the starting equation to solve and get that answer
12/14 can be simplified, and that would be an equivalent ratio. Divide 12 and 14 both by 2, and then you get 6/7.
Another equivalent ratio is 120/140. To get this ratio, I merely multiplied both the numerator and denominator of the ratio by 10.
You can get an infinite amount of equivalent ratios for 12/14. All you have to do is make sure that whatever you multiply one part of the ratio by, you have to multiply the other part of the ratio by the same thing.
A final example is 60/70. I just multiplied both 12 and 14 by 5.
You pay off the bigger one first because if you don't do that one first the amount of money in the credit card will just gain interest and have more, and you won't be able to pay the big amount.
