Solve by means of a combination of substitution and addition elimination

2x-y+3z=-14

4x+2y-z=12

6x-3y+4z=-22

A box contains cards number 1-10. A card is drawn at random, then replaced, and a second card is drawn. What is the probability that the first number is a multiple of 5 and the second number is prime?

My locker combination has three digits. None of the digits are 0. What is the probability that the first digit of my locker combination is less than 3? A. 1/3 B. 1/2 C. 2/9 D. 3/10

10. Which of the following expressions is equivalent to 6 (5 + 3x) ? A30 + 3x B 11 + 9x C 30 + 18 D11 + 3x

Simplify expression 4x+2x+3x

Simplify ab + ab - bc - ab + bc

A store sold a case of scented candles for $17.85 that had been marked up by 110%. What was the original price?

Add the following weights 5lb 9oz +1b 9oz

Multiple-choice and yesterday 75% of 400 parents said that they give the child who as a snack. how many of the parents your big day that is wrong? a 150 d 200 c 225d 300

Find the rate of depreciation to the nearest whole percent for a car that cost $19,000 three years ago and is now worth $12,100

In the diagram, GB = 2x + 3 ... What is GB 5x G x + 9A