Solve the system of equations using Gaussian Elimination method.

x + y + z - t = 4

2x - y + 2z + 3t = - 8

-x + 2y - 3z + t = 4

3x + y + 2z - 3t = 9

The solution to 3.2x = 11.52 is x = ___. 3.6 8.32 14.72 36.8

Identifying the values a, b, and c is the first step in using the Quadratic Formula to find solution (s) to a quadratic equation. What are the values a, b, and c in the following quadratic equation? 18 = - 9x + 7x2 A. a = 18, b = 9, c = - 7 B.

A magazine sales person earns $250 a week plus a commission of of the total sales. If the total sales for the week were $693, what is the total that the sales person earned?

Susan bought 2,000 grams of rice and x grams of flour from a grocery store. Which of the following expressions represents the total weight of both items in kilograms?

An arrow is shot at a square target with sides 100 cm long. The probability of hitting a circle with a 25 cm radius is equal to 2.0%.

Use the formula F=9/5C+32 to convert 24°c to degree F

Deluxe coffee is to be mixed with regular coffee to make at least 46 pounds of a blended coffee. The mixture must contain at least 11 pounds of deluxe coffee. Deluxe coffee costs $7 per pound and regular coffee $5 per pound.

Angie takes a loan of $1000 that has a simple interest rate of 3% annually. What is the amount of interest accrued after 2 years?

How many grams in 2/3 of a pound

Larry was able to walk 4 more than twice as many dogs as his friend kyle. write an algebraic expression to represent the number of dogs larry walked compared with kyle