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

1.25x + 1.49 = 100
what error did barbara make in writing the equation?

barbara’s equation did not consider the number of bottles of water.
barbara’s equation did not consider the number of bottles of iced tea.
barbara’s equation did not use the correct price for the bottles of iced tea.
barbara's equation did not use the correct total for sales.

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

Solution:

Let us first determine the equation and then compare with the given equation in question

Let "x" be the number of bottles of water sold

Let "y" be the number of bottles of iced tea sold

Cost of 1 bottle of water = $ 1.25

Cost of 1 bottle of iced tea = $ 1.49

Therefore, to earn $ 100, we can frame a equation as,

number of bottle of iced tea sold x Cost of 1 bottle of iced tea + number of bottle of water sold x Cost of 1 bottle of water = 100

1.49x + 1.25y = 100

But the given equation in question is:

1.25x + 1.49 = 100

So Barbara has made a error and he has missed the variable "y" which represents the number of bottles of iced tea sold

Therefore, Barbara’s equation did not consider the number of bottles of iced tea.

where are the options?

step-by-step explanation:

$20.01

step-by-step explanation:

the sale price is (1.00 - 0.77)($87), or 0.23($87), or $20.01.