fernandoguercioni
contestada

Kimberly sells handmade jewelry online, charging one price for bracelets and another price for necklaces. This table shows how many bracelets and necklaces she sold in November and December.

Bracelets Necklaces Total sales

November 15 8 $500

December 19 24 $980

What was the price of each item?

Bracelets cost $____

each and necklaces cost $____

Respuesta :

angstar4
Bracelet cost = b
Necklace cost = n

15b + 8n = 500
19b + 24n = 980

Elimination method x -3
-45b - 24n = -1500
19b + 24n = 980

-26b = -520
b = $20 bracelets

Plug back in
19(20) + 24n = 980
380 + 24n = 980
24n = 600
n = $25 necklaces


Check:
15(20)+ 8(25)= 500
300 + 200 = 500
500 = 500 :)

Otras preguntas