Answer:
She must sell 45 cups of lemonade to break even.
Step-by-step explanation:
Given:
Brittany's lemonade stand costs $90 to build and each cup of lemonade costs $2 in ingredients.
If she sells each cup for $4.
Now, to find the quantity of cups of lemonade she must sell to break even.
$2 for each cup of lemonade ingredients:
And, she sells per cup for $4.
So, her profit for per cup is:
[tex]\$4-\$2\\\\=\$2.[/tex]
Let the quantity of cups of lemonade be [tex]x.[/tex]
Cost of Brittany's lemonade stand = $90.
Now, to get the quantity of cups we set an equation:
[tex]2x=90[/tex]
Dividing both sides by 2 we get:
[tex]x=45.[/tex]
The quantity of cups of lemonade = 45.
Therefore, she must sell 45 cups of lemonade to break even.