Systems in Three Variables Linear Systems
Acellus
Solve the system.
x + 4y +z = 12
y - 3z = -7.
z = 3
Enter your answer as an ordered triple.

Mason bought 8 1/4 feet of wire. he cut off a piece of wire 3 5/12 feet long and used it for his science project. how much wire did mason have left?

Carmen and matt are conducting different chemistry experiments in school. in both experiments, each student starts with an initial amount of water in a flask. they combine two chemicals which react to produce more water. carmen's experiment starts with 30 milliliters of water in a flask, and the water increases in volume by 8.5 milliliters per second. matt's experiment starts with 10 milliliters of water and increases in volume by 28% each second.

Mrs. manning's current savings is 156% of what she had in her account last month. if she has $1170 in her account this month, what was her last month's savings? a. $700 b. $725 c. $750 d. $775