The linear function in slope-intercept form for the cost of a visit of x hours is given as follows:
C(x) = 9x + 31.
<h3>What is a linear function?</h3>
A linear function is modeled by:
y = mx + b
In which:
- m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.
- b is the y-intercept, which is the value of y when x = 0, and can also be interpreted as the initial value of the function.
In this problem, the rate means that the slope is of m = 9. When x = 3, C(x) = 58, hence the y-intercept is found as follows:
C(x) = 9x + b
58 = 9(3) + b
b = 31.
Hence the equation is:
C(x) = 9x + 31.
More can be learned about linear functions at brainly.com/question/24808124
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Scalene triangle because all of the sides are different lengths.
Answer:
1360.78 g
Step-by-step explanation:
1 lb = 453.592 g
3 lbs = 3 * 453.592 g = 1360.78 g
Answer:
x = 30 in
Step-by-step explanation:
length of rectangle is (2/3)x + 10; width is (1/3)x + 5;
perimeter is 90 in; find x:
P = 90 in = 2(2/3)x + 2(10) + 2(1/3)x + 2(5), or
90 in = (6/3)x + 30 in
Solving for x, we get (2)x = 60 in, or x = 30 in
we know that
Using the original score as the basis
If Misha increased her test score from 
% to 
%
then
the increase variation is equal to
%-%=
%
to find the approximate percent increase of Misha's test score we apply a rule of three
if %--------------> represents 
%
%----------------->x
%
therefore
the answer is
the approximate percent increase of Misha's test score is 
%
