The reduced row echelon form of the augmented matrix of a system of equations is given. Find the solutions of the system.
1 0 0 5 18
0 1 0 4 -5
0 0 1 0 -9
0 0 0 0 0
Enter the solution of the system below.
Use w for the parameter
x=
y=
z=
W is any real number

It costs 4.25 for 1 pound of roast beef. how much will it cost to purchase 2.5 pounds of roast beef? round to nearest cent

In the field of thermodynamics, rankine is the unit used to measure temperature. one can convert temperature from celsius into rankine using the formula , what is the temperature in celsius corresponding to r degrees rankine? a. 9/5(c - 273) b. 9/5(c + 273) c. 5/9( c - 273) d. 5/9( c + 273)

Timmy uses 1 1 2 cups of sugar for every 2 gallons of lemonade he makes. how many cups of sugar would timmy use if he makes 13 gallons of lemonade?