Provide an appropriate response.Solve the system of equations using the substitution method: 3x + 5y = 51 y = 2x + 5
A. x = 9, y = 23
B. x = 2, y = 9
C. x = -
, y = 2
D. x = 3.54, y = 12.08
Answer: B
Mathematics
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Solve the problem. Round to the nearest dollar or tenth of a percent when necessary.A store sells an item for $460 each. If this is a 68.9% markup on the selling price, find the equivalent markup percent on cost.
A. 221.5% B. 40.8% C. 131.2% D. 460%
Mathematics
Solve the equation.3a = -18
A. {21} B. {1} C. {-21} D. {-6}
Mathematics
Find the slope of the line that passes through the two given points.(15.1, -17.1) and (13.8, 18.4)
A. m = - 
B. m = 
C. m = - 
D. m = 
Mathematics
Solve the equation. Use words or set notation to identify equations that have no solution, or equations that are true for all real numbers. 
(6x - 9) = 6 
+ 9
A. {x|x is a real number}
B. ?
C. 
D. {0}
Mathematics