Answer:
x=(-15±√(79) all over 4
Step-by-step explanation:
You can do this in a few ways but I used the quadratic formula for it. Just plug the numbers into this equation: x= -b ± √(b-4ac) all over 2a.
In this case a=2, b=15, c=-8
Also, there wasn't an "x" behind 15 so I'm doing this by assuming that there is one.
The answer to the question is
20/30. 24/30,. 21/30
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Plan A = 10x + 144
Plan B = 48 + 22y
Equate them
10x + 144 = 22y + 48
22y - 10x = 144 - 48
22y - 10x = 96
divide by 2
11y - 5x = 48
What I did was just use trial and error at this point.
11(8) - 5(8) = 48
8 visits must a person make for plan A to plan B.
Y0ou find a common denominatior, in this case is 15.... then multiply whatever u had to get the denominator 15 times the top number, so 3/5 + 10/15 = 13/15
