Answer: letter D. Most of the mass of an atom comes from elctron cloud
Step-by-step explanation: your welcome and have a good day
Answer:
hhhci
Step-by-step explanation:
Answer:
(2,-3)
Step-by-step explanation:
I am not sure if you meant the first equation to be y or -y. I solved it as y.
y = x-5 -x -3y =7
I am going to take the second equation and write it as x =
-x - 3y = 7 Give equation
-x = 3y +7 Add 3y to both sides
x = -3y-7 Multiplied each term in the equation by -1 so that x could be positive
I am going to substitute -3y-7 for x in the first equation up above
y = x - 5
y = -3y -7 - 5 Substitute -3y-7 for x
y = -3y -12 Combined -7-5
4y = -12 Added 3y to both sides
y = -3 Divided both sides by 4.
I now know that y is -3, I will plug that into x = -3y-7 to solve for x
x = -3(-3) -7
x = 9-7 A negative times a negative is a positive
x = 2
Answer:
<h2>x = -1</h2>
Step-by-step explanation:
Hey there!
The correct choice is D. 5(2 + y)
As you can see, the expression matches the description
5 times = 5( The parentheses directly next to the 5 means to multiply what is inside the parentheses by that number, in this case, 5
The sum of 2 and y = (2 + y)
Therefore, that makes D the CORRECT option
Hope this helps you!
God bless ❤️
xXxGolferGirlxXx
