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Ne4ueva [31]
3 years ago
14

How many moles are in a sample of 4.57 x 1024 atoms of neon (Ne)?

Mathematics
1 answer:
damaskus [11]3 years ago
3 0

Answer:

151 mol Ne.

Step-by-step explanation:

I did work on Paper sorry if i can't type it, It'll mess it up.

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You pick a card, roll a die, and find the sum. How many different sums are possible?
lawyer [7]

Answer:

14

Step-by-step explanation:

We know that the lowest number on a die is 1 and the lowest number on a card is 2. We can add these two together to find our first sum, 3.

Next, we will add our highest numbers; 6 + 10, which equals 16. Instead of solving for everything in between, since we have found the lowest and the highest and we are only looking for different sums, we can do the following:

16 - 2

You may be wondering why we would do 16 minus two instead of three. This is because three is included as one of the different combinations. The result of this formula is 14, so we know that there are 14 different combinations.

4 0
2 years ago
Read 2 more answers
Please help! 9th grade math
Rzqust [24]

Answer:

They switched the w and the -15 at the end

Step-by-step explanation:

When you switch the inequality sign after multiplying or dividing a number, the variable stays on the side its on, even if it looks weird.

5 0
2 years ago
There are 40 children in the park which is 500 square yards, and there are 30 children in the baseball field which is 300 square
Karolina [17]

Answer:

30 in 300 is more

Step-by-step explanation:

5 0
3 years ago
Madelyn invested $650 in an account paying an interest rate of 5 3/4 % compounded daily. Jonathan invested $650 in an account pa
Olegator [25]

Answer: Madelyn would have $14.17 in her account more than Jonathan.

Step-by-step explanation:

We would apply the formula for determining compound interest which is expressed as

A = P(1+r/n)^nt

Where

A = total amount in the account at the end of t years

r represents the interest rate.

n represents the periodic interval at which it was compounded.

P represents the principal or initial amount deposited

Considering Madelyn's investment,

P = 650

r = 5.75% = 5.75/100 = 0.0575

n = 365 because it was compounded 12 times in a year.

t = 10 years

Therefore,

A = 650(1+0.0575/365)^365 × 10

A = 650(1+0.0001575)^3650

A = 650(1.0001575)^3650

A = 650 × 1.7768

A = 1154.92

The formula for continuously compounded interest is

A = P x e (r x t)

Where

A represents the future value of the investment after t years.

P represents the present value or initial amount invested

r represents the interest rate

t represents the time in years for which the investment was made.

e is the mathematical constant approximated as 2.7183.

Considering Jonathan's investment,,

P = 650

r = 5.625% = 5.625/100 = 0.05625

t = 10 years

Therefore,

A = 650 x 2.7183^(0.05625 x 10)

A = 650 x 2.7183^(0.5625)

A = 650 × 1.755

A = $1140.75

The difference in the amount in both accounts is

1154.92 - 1140.75 = $14.17

5 0
3 years ago
All movies until 4:00 p.m require a discount ticket, and all movies after 4:00 p.m require a regular-price ticket.Each theater a
Pavel [41]

I'm guessing that there's more information missing from
this question than is given ... quite an accomplishment. 
It's as if I were to ask you:  "I live in Chicago, work as an
engineer, and my car is blue. How old am I ?  Explain how
you found your answer."

We need to know something about how much a discount
ticket costs, and/or how much a regular-price ticket costs,
and/or how much the theater took in at the box office last
Saturday.

Working with all the information given in the question, the
least possible number of showings after 4:00 PM could have
been zero, if the operators shut the doors at 4:00 PM and
went home.
___________________________________

After reading the question again, more carefully this time,
I'll also need to know how many theaters there are in that
movieplex, and if Saturday's box-office take refers to the
whole movieplex, or to only one theater.

7 0
3 years ago
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