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{:[m+p=23],[m-7=p]:}
The given system of equations relates 
m, the number of shirts Mara owns, and 
p, the number of shirts Phil owns. Which of the following is the best interpretation of the number 7 in the system?
Choose 1 answer:
(A) Mara owns 7 more shirts than Phil does.
(B) Phil owns 7 more shirts than Mara does.
(C) Mara owns 7 shirts.
(D) Phil owns 7 shirts.

m+p=23m+p=23 \newlinem7=pm-7=p \newlineThe given system of equations relates mm, the number of shirts Mara owns, and pp, the number of shirts Phil owns. Which of the following is the best interpretation of the number 77 in the system?\newlineChoose 11 answer:\newline(A) Mara owns 77 more shirts than Phil does.\newline(B) Phil owns 77 more shirts than Mara does.\newline(C) Mara owns 77 shirts.\newline(D) Phil owns 77 shirts.

Full solution

Q. m+p=23m+p=23 \newlinem7=pm-7=p \newlineThe given system of equations relates mm, the number of shirts Mara owns, and pp, the number of shirts Phil owns. Which of the following is the best interpretation of the number 77 in the system?\newlineChoose 11 answer:\newline(A) Mara owns 77 more shirts than Phil does.\newline(B) Phil owns 77 more shirts than Mara does.\newline(C) Mara owns 77 shirts.\newline(D) Phil owns 77 shirts.
  1. Analyze Equation 11: Analyze the first equation in the system.\newlineThe first equation is m+p=23m + p = 23, which tells us that the total number of shirts owned by Mara (mm) and Phil (pp) combined is 2323.
  2. Analyze Equation 22: Analyze the second equation in the system.\newlineThe second equation is m7=pm - 7 = p, which tells us that Mara owns 77 more shirts than Phil. This is because if we add 77 to Phil's number of shirts (pp), we get Mara's number of shirts (mm).
  3. Interpret Number 77: Interpret the number 77 in the context of the system.\newlineBased on the second equation, the number 77 represents the difference in the number of shirts owned by Mara and Phil, with Mara owning 77 more shirts than Phil.