2 years ago

An atom has 3 protons and 4 neutrons and 2 electrons, what is the overall charge on this atom

Mathematics

1 answer:

Lubov Fominskaja [6]2 years ago

4 0

Answer:

Step-by-step explanation:

Each Proton is +1

Each Neutron is 0

Each Electron is -1

1+1+1+0+0+0+0-1-1=1

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If each pie serves 6 people and there were 22 people at dinner, how many pies exactly, (like a decimal), would feed them?

natulia [17]

22/6=03.666

the answers 03.666

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3 years ago

What is the value of x?

Oduvanchick [21]

Answer:

x = 19

Step-by-step explanation:

Vertical angles are equal

7x - 8 = 6x + 11

7x - 6x = 11 + 8

x = 19

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2 years ago

The points with coordinates (x, -1), (2,2), and (4,3) lie on the same line. What is the value of x?

borishaifa [10]

Find the slope of the line passing throught the points (2, 2) and (4, 3).

The formula of a slope:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

Substitute:

$m=\dfrac{3-2}{4-2}=\dfrac{1}{2}$

If the point (x, -1) lie on the same line, then the slope of line passing through the points (2, 2) and (x, -1) the same:

Substitute:

$m=\dfrac{-1-2}{x-2}=\dfrac{-3}{x-2}$

We have the equation:

$\dfrac{-3}{x-2}=\dfrac{1}{2}$ <em>cross multiply</em>

$(1)(x-2)=(-3)(2)$

$x-2=-6$ <em>add 2 to both sides</em>

$x=-4$

<h3>Answer: x = -4.</h3>

7 0

2 years ago

If anyone can solve this quickly I will give brainly

Nataly [62]

Answer:

m∠BFE = 171º

BE = 219º

Step-by-step explanation:

∠BFE is supplementary to ∠EFC

m∠BFE = 180 - 9

m∠BFE = 171º

--------------------------

The angle between two chords is equal to half the sum of the intercepted arcs:

∠BFE = (DC + BE)2

171 = (123 + BE)/2

342 = 123 + BE

219º = BE

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2 years ago

If 9 pairs of jeans cost $121.50 find the cost of 5 pairs

Darya [45]

five pairs of jeans should cost $67.5

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2 years ago

Read 2 more answers