You estimate that a small restaurant will serve 430 customers the first week it is open. The actual number of customers the first week is 400. Find the percent error

7.5 %

Step-by-step explanation:

Given:

You estimate that a small restaurant will serve 430 customers the first week ,this  is our experimental value.

The actual number of customers the first week is 400, this is the theoretical value.

To find:

Find the percent error ?

Solution:

As we know that:

Therefore, percent error is 7.5 % for estimation of coming of the customers in the first week.

c is the answer

step-by-step explanation:

55.44 inches

step-by-step explanation:

part a. assuming a perfectly linear relationship, we can find the slope from the first two data points.

slope = m = (change in rainfall)/(change in years)

= (61.80 -62.33)/(2005 -2004) = -0.53/1 = -0.53

then the point-slope form of the equation of the line can be written as

y = m(x -h) +k . . . . . m = -0.53, (h, k) = (0, 62.33)

y = -0.53x +62.33 . . . x = years after 2004

part b. in 2017, x = 2017 -2004 = 13. then the predicted rainfall is

y = -0.53·13 +62.33 = 55.44 . . inches

the predicted rainfall in 2017 is 55.44 in.