4. Dexter's aquarium holds 4.5 gallons of water. He needs to add some chemicals to balance the pH level in the aquarium. However, the chemicals are in liters. There are approximately 3.8 liters in 1 gallon. Which measurement is closest to the number of liters of water in Dexter's aquarium? O 1.18 L 0.7L o 8.3 L 17.1 L CLEAR ALL ​

a) what number, when added to negative four, is equal to negative five?

step-by-step explanation:

answer:

your answer is: c. 196 7/8 in^3.

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.