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Michelle spent $32 on hot dogs and hamburgers. Hot dogs were $5 and hamburgers $6. If she bought a total of 6 items, how many of each kind did she buy?

Respuesta :

4 hot dogs and 2 hamburgers. (4*5=20)+(2*6=12)

Answer:

Michelle bought 4 hot dogs and 2 hamburgers.

Step-by-step explanation:

Let hot dogs be represented by h.

Let hamburgers be represented by b.

Hot dogs were $5 and hamburgers $6 and Michelle spent $32 on them.

Equation becomes:

[tex]5h+6b=32[/tex]   ...... (1)

Michelle bought a total of 6 items.

Equation becomes:    

[tex]h+b=6[/tex]  or [tex]h=6-b[/tex]  

Now substituting the value of h in (1)

[tex]5(6-b)+6b=32[/tex]

=> [tex]30-5b+6b=32[/tex]

=> [tex]30+b=32[/tex]

Hence, b = 2

And as [tex]h=6-b[/tex]

So, [tex]h=6-2[/tex]

Hence, h = 4

Answer : Michelle bought 4 hot dogs and 2 hamburgers.