Answer: A
We could solve it but it's easier to just check the given solutions.
A. (7,1)
2y + 5 = 2(1)+5 = 7 = x, good
x/3-y = 7/3 - 1 = 4/3, good
B. (-3,8)
2y + 5 = 2(8)+5 = 21 not x=-3, doesn't check
C. Can't be true because we found a solution
D. Infinitely many solutions not true because the lines have different slopes
X = the $5 per person, I'm not exactly sure because the problem seems kind of weird, but I think the x is the $5 per person.
This forms a right triangle with hypotenuse of length 15 and vertical component of length 4. Use the inverse of sine (vertical/hypotenuse) to get arcsin(4/15) = 15.4 degrees which rounds to 15
Final answer:
Answer choice B, 15 degrees
In order from least to greatest it is: 3/8, 2/3, 3/4. To find this on your own get common denominators and compare. Hope this helps.
Answer:
4.5
Step-by-step explanation:
3*3=9
9/2=4.5
