Question

Kiran bought a smoothie every day for a week. Smoothies cost $3 each. The amount of money he spends, in dollars, is a function of the number of days of buying smoothies.

What is the independent variable in this scenario?
a) Money spent
b) Number of days
c) Cost per smoothie
d) Weekdays

Answer 1

The independent variable in this scenario is the 'number of days' Kiran buys smoothies. This is because the total money spent on smoothies depends on the number of days he purchases them, with each smoothie costing $3.

Step-by-step explanation:

The independent variable in this scenario is the number of days Kiran buys smoothies. An independent variable is what you change or control in order to see its effects on the dependent variable. In this case, the more days Kiran buys smoothies, the more money he will spend. Therefore, money spent is the dependent variable because it depends on how many days he purchases smoothies. If a smoothie costs $3 each and Kiran buys one each day, to compute the total money spent, you would multiply the number of days by $3 per smoothie. For example, if Kiran buys a smoothie for 7 days straight, he would spend 7 days * $3/smoothie = $21 on smoothies that week.