Question

Louie made 8.1 liters of fruit punch using only grape juice and carbonated water. He used 4.2 liters of grape juice. The equation 4.2 + c = 8.1 can be used to represent this situation, where c is the number of liters of carbonated water used. How many liters of carbonated water did Louie use?

3.9 liters
4.1 liters
12.3 liters
16.5 liters

Answer 1

a. 3.9 liters is your answer

Answer 2

Answer: First option is correct.

Step-by-step explanation:

Since we have given that

Quantity of fruit punch using only grape juice and carbonated water = 8.1 liters

Quantity of grape juice he used = 4.2 liters

So, the equation would be

$4.2+c=8.1$

where c is the number of liters of carbonated water used.

So, Amount of carbonated water is given by

$c=8.1-4.2\\\\c=3.9\ liters$

Hence, First option is correct.