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mriffell11
22.12.2020 •
Mathematics
Jack is buying a subscription to a magazine club the function C equals 45+3.75M describes the cost of a yearly subscription see in terms of the number of magazines he orders what is appropriate domain for the function
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Ответ:
Given:
The cost function of a yearly subscription is
where, M is the number of magazines.
To find:
The appropriate domain.
Solution:
We have,
Domain is the set of input values and here input variable is M, which is number of magazines.
Linear function is defined for all input values. But the number of magazines can not be negative or decimal or fractional values. So, the possible value of M is always a whole number.
Therefore, the domain for the function is the set of whole numbers, i.e., {0, 1, 2, 3, ....}.
Ответ:
16-Ounce Package
Step-by-step explanation:
We will need to first find the unit rate of the cost per ounce
10-Ounce Package
$8.11/10
= $0.811
16-Ounce Package
$12/16
= $0.75
$0.75 < $0.811
The 16-ounce package would be the better buy as it cost less