Respuesta :

dexteright02
inversely proportional
4 ---------- 12
12 -------- x

[tex] \frac{4}{12} = \frac{x}{12} [/tex]
[tex]\boxed{x = 4}[/tex]

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inversely proportional
6 -------------- 10
18 ------------ x

[tex] \frac{6}{18} = \frac{x}{10} [/tex]
[tex]18*x = 6*10 [/tex]
[tex]18x = 60[/tex]
[tex]x = \frac{60}{18} [/tex]
[tex]\boxed{x \approx 3,3}[/tex]

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inversely proportional
4 ---------- 10 ----------- 60
30 -------- 10 ----------- x

[tex] \frac{4}{30} * \frac{10}{10} = \frac{x}{60} [/tex]
[tex] \frac{40}{300} = \frac{x}{60} [/tex]
[tex]300*x = 40*60[/tex]
[tex]300x = 2400[/tex]
[tex]x = \frac{2400}{300} [/tex]
[tex]\boxed{x = 8}[/tex]

Answer:

12 friends would pay $4 each

It would take 3.3 days to do the same amount

30 assistants would take 8 minutes to prepare the same amount

Step-by-step explanation:

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