Question

Barbara sells iced tea for a $1.49 per bottle and water for $1.25 per bottle. She wrote a equation to find the number of drinks she needs to sell to earn $100.

1.25x + 1.49= 100

What error did Barbara make in writing the equation?
A. Barbara’s equation did not consider the number of water drinks.
B. Barbara’s equation did not consider the number of iced tea drinks.
C. Barbara equation dining use the correct price for iced tea drinks
D. Barbara’s equation did not use the correct total of sales

Answer 1

Answer B is correct. She forgot to use a variable for 1.49. The correct equasion would be:

`1.25x + 1.49y = 100`

Answer 2

B. Barbara’s equation did not consider the number of iced tea drinks.

Explanation:

Barbara sells iced tea for a $1.49 per bottle and water for $1.25 per bottle.

She wrote a equation to find the number of drinks she needs to sell to earn $100.

`1.25x+1.49=100` ; here x is the number of water bottles sold.

She forgot to write a variable with 1.49 like :

`1.25x+1.49y=100`

Therefore, the answer is : Barbara’s equation did not consider the number of iced tea drinks.