Solve using matrices.

x + y + z = 6

x + y - z = 0

3x + 2y + z = 10

What is 90% in fraction form

What is the approximate circumrefernce circle with the redius of 8.5 meters

0.1 as a decimal and percentage

If N granola bars cost 3 dollars, then the cost of 3 granola bars is?

What is (1/4+5/4) to the second power + 1/4

Is this true or false 276 times 13 = 276 times 7 + 276 times 6 = 1,932 + 1,656 and why?

1. Yousaf deposits $5000 in a savings account at his local bank. The account pays 5.5 % interest compounded annually. At the end of 6 years, how much will he have in his account?

A researcher measures 200 counts per minute coming from a radioactive source at noon. At 3:00pm, she finds that this has dropped to 25 counts per minute. What percentage of the original source will remain at 6:00pm?

The probability of a spinner stopping on 5 is 1/9. the probability of the spinner stopping on 6 is 4/9. what is the probability of the spinner stopping on 5 or 6? a. 4/9 b. 4/81 c. 5/9 d. 5/18

What does an algebraic expression always have?