Question

You want to buy $4lb$ of Cortland apples and some Gala apples. Each variety of apple costs $\$ 1.20/lb$. You can spend $\$ 7.20$. How many pounds of Gala apples can you buy?

Answer 1

Hint: First, we shall note the terms we are going to use in the calculation. Here, Cortland apples and Gala apples and the dollar amount is used. In this question, it is given that we want to buy $4lb$ Cortland apples and some Gala apples. Also, it is given that each variety of apple costs $\$ 1.20/lb$. We can spend the amount up to $\$ 7.20$. And we are asked to calculate how many pounds of Gala apples we can buy.
To solve this question, first, we need to calculate the amount that is spent on Cortland apples. And then subtract the amount that is spent on Cortland apples from the total amount. It can be clearly understood that the remaining amount is going to be spent on Gala apples. From this, we can easily calculate how many pounds of Gala apples we can buy.

Complete step by step answer:
 It is given that we need to buy $4lb$ Cortland apples and some Gala apples and each variety of apple costs $\$ 1.20/lb$. Also, it is given that we can spend the amount up to $\$ 7.20$.
To find How many pounds of Gala apples we can buy.
We already know that each variety of apple costs $\$ 1.20/lb$.
Total costs of $4lb$ of Cortland apples = $\$ 1.20 \times 4$
$ = \$ 4.80$ …..$\left( 1 \right)$
Total costs that we are provided for buying both apples= $\$ 7.20$
\[Total{\text{ }}costs{\text{ }}for{\text{ }}Gala{\text{ }}apples = Total{\text{ }}cost - Total{\text{ }}cost{\text{ }}of{\text{ }}Cortland{\text{ }}apples\]
Total costs required for Gala apples$ = \$ 7.20 - \$ 4.80$
$ = \$ 2.40$ …..$\left( 2 \right)$
From this, we can easily calculate how many pounds of Gala apples we can buy.
When we divide both the equations, we get,
\[\dfrac{{\$ 4.80}}{{\$ 2.40}} = 2\]
Therefore, $2lb$ of Gala apples can be bought.

Note: First, we need to calculate the amount that is spent for Cortland apples. And then subtract the amount that is spent on Cortland apples from the total amount. It can be clearly understood that the remaining amount is going to be spent on Gala apples. From this, we can easily calculate how many pounds of Gala apples we can buy.