The variables y and x have a proportional relationship, and y=9 when x=2. what is the value of y when x=3?

For this case we have that by definition, if the variables "y" and "x" have a proportional relation, andwhen , then:

Now, we want to know the value of the variable "y" when , then:

Clearing "y" we have:

We multiply by "y" on both sides of the equation:

We multiply by 9 on both sides:

We divide by 2 on both sides:

So, when then

walter needs to make at least 5 more cookies but no more than 40. 5 ≥ x ≥ 40;

step-by-step explanation:

walter has to make a minimum of 20 cookies. he already has 15 cookies made, so he must make 5 more to meet the minimum.

the maximum amount of cookies he can make is 55. he already has 15, so he has to make no more than 40 more cookies to meet the maximum.

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