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You buy 16 candles large candles. Large candles cost seven dollars each and small candles cost three dollars each. how many large candles and small candles did you buy

You buy 16 candles large candles Large candles cost seven dollars each and small candles cost three dollars each how many large candles and small candles did yo class=

Respuesta :

The answer would be 9 large candles and 3 small candles. Hope this helped!
joseaaronlara

Answer:

The answer to your question is  He bought 7 large candles and 9 small candles.

Step-by-step explanation:

Data

Large candles = L    cost = $7

small candles = s     cost = $3

Total cost = $76

Total candles = 16

Process

- Write two equations

                                    L  +  s  =  16     ------------ (I)

                                   7L +  3s = 76    ------------- (II)

- Solve the system of equations by elimination

  Multiply equation I by -7

                                 -7L - 7s = -112

                                  7L  + 3s = 76

Simplify

                                    0 - 4s = - 36

Solve for s

                                            s = -36 / -4

                                            s = 9

Substitute s in equation I

                                  L  + 9 = 16

Solve for L

                                  L = 16 - 9

                                   L = 7                                        

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