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Eduardwww [97]
3 years ago
6

If An atom has 10 protons, 11 neutrons, and 9 electrons. What is the atomic number of this atom?

Mathematics
1 answer:
lisov135 [29]3 years ago
3 0

Answer:

B

Step-by-step explanation:

Atomic number is equal to the number of protons in an atom.

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Someone explain this step by step to me 1/2(c-8)=
polet [3.4K]

Answer: c/2-4


Step-by-step explanation:

This is what I get :

1/2(c-8)

Distributed property

1/2(c) + 1/2(-8)


Do c and -8 as a fraction with denominator 1 solve across

1/2×c/1+1/2×-8/1


Here you can only divide -8by 2

C/2-8/2

To get -4

C/2-4


You can't go further

4 0
3 years ago
32 divided by 10-8 divided by 2-3
Alja [10]

Answer:

<h2>-3.8</h2>

Step-by-step explanation:

<h2>32÷10-8÷2-3</h2><h2>32÷10-4-3</h2><h2>3.2-4-3</h2><h2>3.2-7</h2><h2>-7.0-3.2</h2><h2>-3.8answer</h2>
8 0
2 years ago
Which pair shows equivalent expressions?
dolphi86 [110]
Answer: <span>-2x-10=-2(x+5)</span>
<span>
-2x-10

Taking out common factor -2

= -2( x + 5 )</span>
4 0
4 years ago
Read 2 more answers
On the track and field team,
defon

Answer:

It could be anywhere from eight to 15 members.

Step-by-step explanation:

Answer:

A. Count the members on each team

   Hurdles  = ⅜ × 40 = 3 × 5 = 15

Long jump = ⅘ × 40 = 4 × 8  = 32

Let's look at the two extremes.

B. Most people will compete in only one event

Then the teams will overlap by seven members (Figure 1).

C. All those in Hurdles compete in the Long Jump

Then 15 members will compete in both Hurdles and Long Jump (Figure 2).

6 0
4 years ago
Read 2 more answers
Estimate the size of a crowd at a political rally that occupies a rectangular space with dimensions of 200 feet by 300 feet (to
vovikov84 [41]

Answer:

C -15,000

Step-by-step explanation:

25 people occupy 100 ft2

Dimensions of venue: 200 x 300 = 60,000

100 ft2

25 people

=

60,000 ft2

x people

x = 15,000 people

6 0
3 years ago
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