Question

Carolyn and Kim are selling lemonade this summer to raise enogh money for a new Bake Oven. It costs them $0.10 to make a cup of lemonade. They are going to sell each cup of lemonade for $0.25. What is the least omount of cups of lemonade they need to sell in order to collect $10.00 more than they spend?A. 65B. 66C. 67D. 68

Answer 1

Given:

Carolyn and Kim are selling lemonade this summer to raise enough money for a new Bake Oven.

Let the number of cups = x

It costs them $0.10 to make a cup of lemonade.

So, the total cost = 0.1x

They are going to sell each cup of lemonade for $0.25.

So, the total revenue = 0.25x

We need to find the least amount of cups of lemonade they need to sell in order to collect $10.00 more than they spend

so,

`\text{0}.25x-0.1x>10`

solve the inequality to find (x)

`\begin{gathered} 0.15x>10 \\ x>(10)/(0.15) \\ \\ x>66.67 \end{gathered}`

The value of (x) is an integer

So, x = 67

so, the answer will be option C. 67