Create a ratio and cross multiply
20x - 75 = 14x + 63
6x = 138
x=23
hope this helps :)
Answer:
I think it is F
Step-by-step explanation:
6 1/13 for sure
5 14/13 -> 79/13
79/13 to mixed number is 6 1/13
The whole number of minutes that Gianna complete each week as a function of x and y:

Since the above number is greater than 450 minutes, we get the inequality:

Also, "she can complete at most 10 workouts this week" so we deduce the inequality:

Therefore, the system of inequalities is the following:


The above system has many solutions, for example :
Are you trying to figure out what X is? One of the equations equal to 4, and the rest equal to 24.