Well first off if you have a negative sign in front of the seven, DO NOT have a plus sign because it will be confusing. So y-7=13? , You add 7 to 13 and = 20, so y= 20
Answer:
171,459 particles of CO
Step-by-step explanation:
331,002,651×0.000518 = 171459
Answer:
x=3 e y=4
Step-by-step explanation:
x/2=6/y=27/18
...
x/2=27/18
18.x=2.(27)
18x=54
x=54/18
x= 3
...
6/y=27/18
27y=6.(18)
27y=108
y=108/27
y=4
The answer is c thank me later
Answer:
(-3, 0)
Step-by-step explanation:
Solve by elimination. Multiply the first equation by -2 and then add the two equations together.
