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Vladimir79 [104]
2 years ago
13

What is the atomic number of an atom?

Mathematics
1 answer:
mariarad [96]2 years ago
6 0

Answer:

The number of protons

Step-by-step explanation:

Its the correct answer

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Last year, James earned £1,100 per month. This year, he's had a 4% increase in his monthly pay. He worked 40 hours per week for
avanturin [10]

Answer:

A = £7.15 per hour

James' average pay per hour this year is £7.15 per hour

Step-by-step explanation:

Given;

Last year pay = £1,100 per month

This year, he's had a 4% increase in his monthly pay

This year pay P = 1,100 + 4% of 1,100 = 1,100 +1,100(0.04)

This year pay P = £1,144 per month

Yearly pay Tp= 12 × P = 12 × £1,144 = £13,728

Number of hours worked this year;

He worked 40 hours per week for 48 weeks in the year

N = 40 hours per week × 48 weeks per year

N = 1920 hours per year

Average pay per hour this year A;

A = Yearly pay/Number of hours worked this year

A = Tp/N

A = £13,728/1920hours

A = £7.15 per hour

James' average pay per hour this year is £7.15 per hour

5 0
2 years ago
A group consists of four men and six women. Five people are selected to attend a conference.
Citrus2011 [14]

Answer:

A) 252 ways (use 'n choose k' formula)

B) 6 ways (use 'n choose k' formula again).

C) 6/252 basically elementary combinatorics

7 0
3 years ago
Read 2 more answers
Find the area of a semi-circle with<br>diameter d cm.​
siniylev [52]

Answer:

I will let you answer this after reading below

Step-by-step explanation:

a=area

a = \pi {r}^{2}

r = d \div 2

write a in terms of d

a =  \frac{\pi  {d}^{2}}{ 4}

since it's a semicircle divide a by 2 and that's your answer

I can confirm you answer if you like in a comment

6 0
2 years ago
Solve for x .
frosja888 [35]

Answer:x<-3

Step-by-step explanation:

4 0
2 years ago
Please help! And 20 points! :3
timofeeve [1]
1. 42 quarts
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3 years ago
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