Answer:
x = -6/5
y = -8/5
Step-by-step explanation:
2x + y = -4
Y = 3x + 2
Substitute the second equation into the first equation
2x + 3x+2 = -4
Combine like terms
5x +2 = -4
Subtract 2 from each side
5x+2-2=-4-2
5x = -6
Divide by 5
5x/5 = -6/5
x = -6/5
Now we need to find y
y = 3x+2
y = 3(-6/5)+2
y = -18/5 + 10/5
y = -8/5
$30/ 3 sweatshirts = $10 /shirt
$ 10/shirt * 4 shirts = $40
It would cost $40
The product of the greatest common divisor and the least common multiple of two numbers is always the product of the two numbers. So, you have
![\text{lcm}(18,42)\times\text{GCD}(18,42)=18\times 42=756](https://tex.z-dn.net/?f=%5Ctext%7Blcm%7D%2818%2C42%29%5Ctimes%5Ctext%7BGCD%7D%2818%2C42%29%3D18%5Ctimes%2042%3D756)
Answer:
i think its the third one
Step-by-step explanation:
Answer:
If a bag contains 4 red marbles, 3 blue marbles, and 7 green marbles and a marble is randomly selected from the bag, what is the probability that it is blue? P=3/(3+4+7)=3/14 because each of 14 marbles is equally likely to be drawn.
Step-by-step explanation: