Lunch cost $2.25 per day. An equation showing the relationship between the number of days, d, and the total cost of lunch, c, is c = 2.25d. What is the dependent variable ? Explain how you know this.
Answers
Answer:
Because if the lunch costs $2.25 as in the first line. So it would be 2.25. Easy
The dependent variable is number of days (d).
Given:
Lunch cost $2.25 per day.
An equation showing the relationship between the number of days, d, and the total cost of lunch, c, is c = 2.25d
To find:
What is the dependent variable? Explain how you know this.
Solution:
Dependent variables:
The dependent variable is a variable in a relationship that depends on another variable. It is the output for a variable that is affected by changes in the independent variable.
Here is the equation c = 2.25d.
The total cost of lunch will be calculated by multiplying the number of days by the cost per day.
Hence, the total cost of lunch (c) depends on the number of days (d) that lunch is purchased.
When the number of days increases then the cast will increase. Similarly, when the number of days decreases the total cost of lunch will decrease.
Therefore,
The dependent variable is number of days (d).
#SPJ3