Respuesta :

Your job looks correct. The number of small boxes is x, and we know that she has at least 4 of them so we have [tex] x \geq 4 [/tex].

We have no information about the number of large boxes, so the first two options make no sense.

Also, x boxes weighing 5lb and y boxes weighing 12lb sum up to [tex] 5x+12y [/tex], and this weight can be at most 80, so we have

[tex] 5x+12y \leq 80 [/tex]

TPS00
Number of small boxes = x

Number of large boxes = y

she has at least 4 small boxes.
[tex]x \geqslant 4[/tex]

Number of large boxes can be 0 or more.
[tex]y \geqslant 0[/tex]

Maximum weight = 80lb
[tex]5x + 12y \leqslant 80[/tex]


These are the required equations.

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