Solve each system using a matrix

7x+2y=5

13x+14y=-1

The total weight of 6 pieces of butter and a bag of sugar is 3.8lb. If the weight of the bag of sugar is 1.4 lbs what is the weight of each piece of butter

What is the common difference for this arithmetic sequence? 45, 40, 35, 30, 25, ...

What is 0.22 as a decimal

Which of the following are functions? x=-3 y=10 3x+2y=3

In a recent 10-year period, the change in number of visitors to U. S national parks was about - 11,150,000 visitors what is the yearly change in the number of visitors

Five cats each ate 1/4 cup of canned food and 1/4 cup of dry food. how much food did they eat altogether

Solve on the interval [0, 2Pi): 1 + cos (theta) = (sqrt (3) + 2) / 2 A. Pi/6, 5Pi/6 B. Pi/3, 5Pi/3 C. Pi/6, 11Pi/6 D. 7Pi/6, 11Pi/6

Eli invested a total of $2000 in two stocks. One stock cost $18.50 per share, and the other cost $10.40 per share. Eli bought a total of 130 shares. Write and solve a system of equations to find how many shares of each stock Eli bought.

The length of a rectangle is 12 inches longer than the width. Find the length and width if the perimeter is 184 inches.

X+8 > 18 how do you solve it