Solve the problem.
-On a buying trip in Los Angeles, Rosaria Perez ordered 120 pieces of jewelry: a number of bracelets at $4 each and a number of necklaces at $9 each. She wrote a check for $980 to pay for the order. How many bracelets and
How many necklaces did Rosaria purchase?
A) 20 bracelets and 100 necklaces
B) 25 bracelets and 95 necklaces
C) 15 bracelets and 105 necklaces
D) 30 bracelets and 90 necklaces

Question

Quizplus · Accepted Answer

Let x be the number of bracelets and y be the number of necklaces.4x + 9y = 980x + y = 120Solving the system of equations gives x = 20 and y = 100.

Solve the Problem. -On a Buying Trip in Los Angeles, Rosaria Perez Ordered