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sergeinik [125]
3 years ago
8

At time tequals​0, water begins to drip out of a pipe into an empty bucket. After 14 ​minutes, there are 7 inches of water in th

e bucket. Write a linear function rule to model how many inches of water w are in the bucket after any number of minutes t.
Mathematics
1 answer:
Vaselesa [24]3 years ago
4 0

Answer:

w=0.5t

Step-by-step explanation:

Given:

'w' represents inches of water left after 't' minutes of time.

The dripping out of water is a linear function.

At time 't' equal to 0, the bucket was empty.

After 14 minutes, there are 7 inches of water in the bucket.

A linear function model is of the form: w=mt+b

Where, m\to\textrm{dripping rate of water}\\b\to\textrm{water level at t=0}

Now, at t=0,w=0(\textrm{As bucket was empty})

At t=14,w=7

Therefore, plugging these values in the above linear model and solving the system of linear equations. This gives,

0=m(0)+b\\0=0+b\\b=0\\\\7=14m+0\\m=\frac{7}{14}=0.5\ in/min

Therefore, the values of 'm' and 'b' are 0.5 and 0 respectively.

Thus, the linear model is given as:

w=0.5t

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