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olya-2409 [2.1K]
2 years ago
10

Express 230 in scientific notation

Mathematics
2 answers:
son4ous [18]2 years ago
6 0
2\underbrace{30}_{\leftarrow2}=2.30\times10^2=2.3\times10^2
mariarad [96]2 years ago
6 0

Answer: \text{In scientific notation }230=2.30\times10^2


Explanation:-

  • Scientific notation is a way to write a very large or a very small number in the product of a decimal form of number [generally between 1 and 10] and powers of ten.

\text{Thus,}230=2.30\times100\\\Rightarrow230=2.30\times10^2

\text{Therefore, In scientific notation }230=2.30\times10^2

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Tickets for a school jazz concert were sold before the concert and at the door. After reviewing ticket sales, the band director
Alex73 [517]

Answer: The answer is:

d=220, b=300

Step-by-step explanation:

You could solve this problem using a series of equations:

d+b=520

b-80=d

How I solve this is:

If d+b=520, you could divide 520 by 2 and say that d and b's average is 260 (though that is not their value).

Then , you know that the difference between them is 80. Since the average is 260, you could add half of 80 (which is 40) and subtract the same to get 220 and 300, which, as you can see, have a difference of 80 and add up to 520. Now you have to find out which is which.

Since 80 fewer tickets were purchased at the door than before the concert (d+80=b (the second equation)), you know that the number of tickets at the door is the lesser number, making the answer:

d=220, b=300


3 0
3 years ago
Read 2 more answers
3 tins of beans and 4 tins of tomatoes cost 2.73. 5 tins of beans cost 1.55. how much is one tin of tomatoes?​
Aneli [31]

Answer:

$0.45

Step-by-step explanation:

1 tin of beans-> $1.55÷3=$0.31

3 tins of beans-> $0.31×3=$0.93

4 tins of tomatoes-> $2.73-$0.93=$1.80

1 tin of tomatoes->$1.80÷4=$0.45

4 0
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9. PART A: Which of the following best summarizes
ivanzaharov [21]

Answer:

D Stanton encourages the audience to spread the word for their cause

Step-by-step explanation:

I just know I have done the test and it makes the most sense. :)

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2 years ago
Jim drank 245 cups of orange juice and Jack drank 1110 cups less than Jim.
Debora [2.8K]

Answer:

Step-by-step explanation:

Jim drank 2 and 4/5 orange juice

2and 4/5=14/5 orange juice

jack drank  1and 1/10 less than Jim= 11/10 less than Jim

I introduce the whole numbers into the fractions

we will convert the number 14/5 into a fraction that has the denominator 10, by multiplying by 2 both numerator and denominator

(14/5 )*2=28/10

Now we can find out how much juine Jack drank

28/10- 11/10= 17/10

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1 and 7/10

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2 years ago
Need help please and thanks
Dennis_Churaev [7]
1 parallelogram
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