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umka2103 [35]
3 years ago
14

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

e candles and small candles did you buy

Mathematics
2 answers:
allsm [11]3 years ago
8 0

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                                        

butalik [34]3 years ago
4 0
The answer would be 9 large candles and 3 small candles. Hope this helped!
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