math31343
15.07.2019 •
Mathematics
Is y varies directly as x, and y is 18 when x is 5 witch expression can be used to find the value of y when x is 11?
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Ответ:
Where,
k: proportionality constant
We must find the value of k.
For this we use the following data:
y is 18 when x is 5.
Substituting values we have:
From here, let's clear k:
Then, replacing values we have:
For x = 11 we have:
An expression that can be used to find the value of y when x is 11 is:
When x = 11 we have:
Ответ:
i have to say im so sorry but dud thats sucks
Step-by-step explanation: