Dependent & independent variables | 6th grade | Khan Academy

Recent questions

• What is the cost of apples?

  The cost of apples is determined by the price per apple multiplied by the number of apples purchased. For instance, if apples are priced at 2 dollars each, the total cost can be calculated by multiplying the number of apples by 2. Therefore, if you buy 5 apples, the total cost would be 10 dollars. This relationship shows how the total cost directly depends on both the price per apple and the quantity purchased.

• How do I calculate total expenses?

  To calculate total expenses, you need to sum up all individual costs associated with your purchases or activities. For example, if you are buying apples, you would multiply the price per apple by the number of apples you intend to buy. If you have other expenses, such as transportation or additional groceries, you would add those costs to the total from the apples to arrive at your overall expenses. This method ensures that you have a comprehensive view of your financial outlay.

• What factors affect apple pricing?

  Several factors can influence the pricing of apples, including supply and demand, seasonal availability, and production costs. When the supply of apples is high, prices may decrease, while low supply can lead to higher prices. Additionally, the time of year can affect availability; for instance, apples are often cheaper during harvest season. Production costs, such as labor and transportation, also play a significant role in determining the final price consumers pay for apples.

• How do I determine apple quantity?

  To determine the quantity of apples you can purchase, you need to know your total budget and the price per apple. By dividing your total budget by the price of one apple, you can find out how many apples you can afford. For example, if you have 20 dollars and apples cost 2 dollars each, you would divide 20 by 2, resulting in the ability to purchase 10 apples. This calculation helps you make informed decisions based on your financial constraints.

• What is the relationship between cost and quantity?

  The relationship between cost and quantity is typically linear, meaning that as the quantity of items purchased increases, the total cost also increases proportionally. In the case of apples, if each apple costs 2 dollars, buying more apples will result in a higher total cost. This direct correlation allows consumers to easily predict their expenses based on how many items they wish to buy, making budgeting and financial planning more straightforward.