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erik [133]
2 years ago
14

In a neutral atom that has 18 protons, how many electrons does it have?

Mathematics
1 answer:
Llana [10]2 years ago
6 0
Neutral atoms must have equal numbers of protons and electrons

Solution: 18 electrons
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the ratio of blue to yellow paint when mixed to make green paint is 3:2 what percentage of the green paint is made from yellow p
tino4ka555 [31]

Answer:

40%

Step-by-step explanation:

3 + 2 = 5

Since 2 is the ratio of yellow paint, 2/5 x 100 = 40%

Hope this helped!

4 0
2 years ago
2 1/3 −1.5x=12.3 please help me I'm really struggling need an answer ASAP.
Harrizon [31]

Answer:

-6.64

Step-by-step explanation:

since you need to find the value of x , but all values to one side and have x on the other .. meaning :

2 1/3 -12.3 = 1.5x

now that you have this find the decimal value of 2 1/3

which is 2*3 +1 = 7/3

in decimal form is 2.33333...

now subtract  (2.3333.. - 12.3 ) / 1.5

x = -6.6444

to 3 sf = -6.64

7 0
3 years ago
rosalyn has decided to purchase a $14,000 car . she plans on putting a $200 down toward the purchase, and financing the rest at
garik1379 [7]
$100 is the answer for your question
6 0
3 years ago
The following table shows the length and width of two rectangles:
faltersainse [42]
The perimeter of these can be found by adding length and width and then multiplying by two. 

Rectangle A: (with all of the variables already doubled)
2x + 16 + 2x - 2 
2x + 2x + 16 - 2
4x + 14
So rectangle A's perimeter is 4x + 14.

Rectangle B: (Still with all the variables already doubled)
8x + 10 + 6x - 4
8x + 6x + 10 - 4
14x + 6
So rectangle B's perimeter is 14x + 6

And now to subtract the two.
(7x + 3) - (4x + 14)
14x + 6 - 4x - 14
14x - 4x + 6 - 14
10x - 8

So it would be C.
5 0
3 years ago
For f(x) = 3x +1 and g(x) = x - 6, find (f- g)(x).
Finger [1]

Answer:

c. -x + 3x + 7  = 2x+7

Step-by-step explanation:

f(x) = 3x +1 and g(x) = x - 6

f-g = 3x +1 - ( x - 6)

Distribute the minus sign

     = 3x+1 - x+6

     = 2x +7

4 0
3 years ago
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