solve the system using substitution.
-3x+y=10
-6x+2y=20

no solutions

(–3, 2)

infinite solutions

(3, 0)

The correct answer is infinite solutions

Step-by-step explanation:

It is given that,

-3x+y=10     (1)

-6x+2y=20  (2)

eq (1) x 2 ⇒ -6x+2y=20  (3)

from this we get eq(2) and eq(3) are same.

Therefore these two equation have infinite solution.

To find the solution using substitution

-3x+y=10     (1)

y = 3x +10

Substitute the value of y in eq(2)

-6x+2y=20  (2)

-6x +2(3x +10) = 20

-6x + 6x + 20 = 20

20 = 20

the answer is: d) o, f, and kr.

atomic radius of bromine (br) is 114 pm.

atomic radius of oxygen (o) is 73 pm.

atomic radius of fluorine (f) is 72 pm.

atomic radius of krypron (kr) is 112 pm.

the atomic radius of a chemical element is a measure of the size of its atom.

the atomic radius varies with increasing atomic number, but usually increases because of increasing of number of electrons.

the atomic radius decreases across the periods because an increasing number of protons, because greater attraction between the protons and electrons.

my guess is

step-by-step explanation: