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RSB [31]
2 years ago
10

10. Un átomo de potasio tiene 19 protones en el núcleo y 20 neutrones. A partir de estos datos, a) ¿Cuál será su número atómico?

7YGº
Mathematics
1 answer:
hram777 [196]2 years ago
6 0

Answer:

translate this to English and I'll help!(:

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Help please i suck at this
kap26 [50]

Answer:

Mistake: -3-5=-2, -3-5=-8

Step-by-step explanation:

-3-(7x+5)+9x=-8+3x+10

-3-7x-5+9x=4x+2

-8+2x=4x+2

-8-2=4x-2x

-10=2x

-10/2=x

-5=x

5 0
2 years ago
What is the equation of the following graph?
ser-zykov [4K]

Answer:

y=0.5x + 5

Step-by-step explanation:

The points are (0,5) and (-10,0)

to find the slope do

0-5/-10-0 = 5/10 = 1/2 = 0.5

next plug one of the points into point slope formula

y-y1=m(x-x1)

lets use the point (-10,0)

y1=0

x1= -10

m= 0.5

y-0=0.5(x- -10)

y = 0.5(x+10)

distribute the 0.5

y=0.5x+5

7 0
3 years ago
If there are 40 entries in a science fair how many ways can the students finish 1st, 2nd, and 3rd
ohaa [14]
The answer is 59,280 . To find you multiply 40 x 39 x 30 which 59,280
8 0
3 years ago
Determine the similarity ratio (large to small) of the similar figures. A) 1:2 B)2.1 C) 3:1 D 3.2.​
lidiya [134]

Answer:

1:2

Step-by-step explanation:

8 0
3 years ago
Write 0.0000574 in standard form
crimeas [40]

Answer:

\frac{287}{50000}

Step-by-step explanation:

hope it helps you.

7 0
3 years ago
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