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3 years ago

If element X has 12 protons, how many electrons does it have?

Mathematics

1 answer:

andre [41]3 years ago

6 0

If an element has x protons, it almost always has x electrons at ground state. Thus, your answer is 12.

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Someone please help me

Karo-lina-s [1.5K]

Area = 2 · (h · d + h · w + d · w)
area = 2 · (2 · 6 + 2 · 2 + 6 · 2)
area = 2 · (12 + 4 + 12)
area = 2 · (28)
area = 56

answer
s = 56 cm^2 (second choice)

3 0

3 years ago

Julia helped serve holiday meals to 47 families. Each family averaged 5 family members. If she served 255 pounds of food, how ma

belka [17]

47 * 5 = 235 Then you divide that by 255 so . 235/255 = <span>0.92156862745. But when you shorten the answer Each family got around 0.92 pounds of food </span>

8 0

3 years ago

Read 2 more answers

What is the area of a circle with the equation (x - 3)^2 + (y + 2)^2 = 64

saul85 [17]

Answer:

200.96 square units

Step-by-step explanation:

$(x - 3)^2 + (y + 2)^2 = 64\\(x - 3)^2 + (y + 2)^2 = 8^{2} \\equating \:it\: with\\(x - h)^2 + (y -k)^2 = r^{2}\\we\:find;\\r^{2} =8^{2}\\\therefore radius\: (r) = 8 units\\Area\: of\: circle\\=\pi r^{2} \\=3.14\times8^2\\=3.14\times 64\\=200.96 \:units^{2}$

4 0

3 years ago

The formula c = 5p + 210 relates c, the total cost in dollars of hosting a birthday party at a skating rink, to p, the number of

Digiron [165]

Answer:

28 people

Step-by-step explanation:

Plug in 350 as c into the equation, since c is the total cost:

c = 5p + 210

350 = 5p + 210

Solve for p:

140 = 5p

28 = p

So, 28 people can attend

4 0

3 years ago

WILL GIVE BRAINLIEST

Aleks [24]

Answer:

AB = 8

Step-by-step explanation:

AC = 36

AB/BC = 2/7

AB = (2/7)BC

AB + BC = 36

(2/7)BC + BC = 36

(9/7)BC = 36

BC = 36(7/9)

BC = 4*7

BC = 28

AB + BC = 36

AB = 36 - 28

AB = 8

======

Is AB/BC = 2/7?

8/28 = 2/7 YES

4 0

2 years ago