This is the concept of business mathematics, given an inflation rate of 3%, that has modeled the price of items using the function c(x)=1.03x, the cost of the refrigerator in 3 years will be as follows;
cost after 1 year:
c(1)=1.03*1500
=1545
cost after 2 years
c(2)=1.03*1545
=1591.35
the cost after 3 years will be:
c(3)=1.03*1591.35
=$1,639.09
Answer:
i have written the solution in image
Let
x--------> the number of quarts of paint needed for the outside
y--------> the number of quarts of paint needed for the inside
we know that
---------> equation
---------> equation
Substitute equation in equation
therefore
<u>the answer is</u>
of paint for the inside
So we replace x with 3. f(3)=3^2-2(3)+6. and f(3)=9-6+6=9. and the answer is d which is 9.
Convention in algebra is that we use letters such as a, b, c, etc., for parameters and letters such as x, y z, and so on, for variables.
Thus the parameters here are a, b and k. k is the constant of proportionality.