3 years ago

What represents the # of protons in a nucleus of an atom

Mathematics

1 answer:

guajiro [1.7K]3 years ago

3 0

Answer:

the atomic number

Step-by-step explanation:

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4x +8=2x + 3x +3 solve for x

velikii [3]

Answer:

x=5

Step-by-step explanation:

4x+8=2x+3x+3

2x+3x=5x

4x+8=5x+3

-4x

8=1x+3

-3

5=1x

5/1

x=5

4 0

3 years ago

Please answer my question bcz I can’t understand

RUDIKE [14]

Please send more context as of the "green numbers".

For the multiplication,

i 49 x 10 = 490
490 ÷ 10 = 49

ii 2.3 ÷ 10 = 0.23
0.23 x 10 = 2.3

iii 0.034 x 1000 = 34
34 ÷ 1000 = 0.034

iv 876 ÷ 100 = 8.76
8.76 x 100 = 876

Hope this helps :)

3 0

3 years ago

At noon Joyce drove to the lake at 30 miles per hour. but she made the long walk back home at 4 miles per hour. How long did she

mars1129 [50]

Answer:

60 miles

Step-by-step explanation:

let d = distance to the lake

Using: time = distance ÷ speed

Create expressions for the time it takes for each journey:

Drive: $t_1=\dfrac{d}{30}$

Walk: $t_2=\dfrac{d}{4}$

If total time = 17 hours

$\implies t_1+t_2=17$

$\implies \dfrac{d}{30}+\dfrac{d}{4}=17$

$\implies \dfrac{17d}{60}=17$

$\implies 17d=1020$

$\implies d=\dfrac{1020}{17}$

$\implies d=60$

Therefore she walked 60 miles

3 0

2 years ago

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Brandon checked his bank account online and saw that he had a -$15 balance so he made a deposit.Now his balance is $67.Find d, t

kirill115 [55]

Answer:

Step-by-step explanation:

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3 years ago

Which equations are related equations to x + 8 = 22?

andre [41]

Answer:

x=22+8 and x+22=8nd 8=22_x

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3 years ago

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