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Dominik [7]
3 years ago
11

Write 219,000,000 in scientific notation

Mathematics
1 answer:
Korvikt [17]3 years ago
6 0
2.19 • 10^8. You first make a number in between 1-10, so it would be 2.19, then you count how many 0s there are behind your numbers and how many numbers are behind the decimal point, so that would be 6 0s and 2 numbers behind decimal point so then you get 10^8.
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Find an equivalent fractions for each given fraction 4/10
Harman [31]
The answer would be 2/5

4. divided by 2 = 2
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10. divided by 2 = 5
3 0
2 years ago
Jasmine can run 4 5/6 miles in 2/3 of an hour. how many miles can she run 1 hour simplify comepletly
Vikentia [17]

Remark

the question depends on d= r * t

d = the distance in miles.

r = the rate of travel in miles per hour

t = the time in hours.


Step One

Rearrange the formula so you are solving for the rate.


d = r * t Divide by t

4 5/6 = (4*6 + 5)/6 = 29/6


r = d / t


Step Two

Substitute into the equation.

r = \dfrac{\dfrac{29}{6}}{\dfrac{2}{3} }


Step Three

Turn the bottom fraction upside down. Multiply these two together.


r = \dfrac{29}{6} * \dfrac{3}{2}


r = 29/4 miles hour.


Step Four

Solve for d when t = 1 hour.


d = ??

r = 29/4 miles / hour

t = 1 hour.


d = 29/4 * 1

d = 29/4 miles


That's as simple as you can get it unless you want 7 1/4 miles or 7.25 miles


7 0
2 years ago
1/7 of the pupils in a class like dark chocolate. 1/2 of the pupils like milk chocolate and the rest prefer white chocolate. wha
koban [17]
14+50=64, leaving 36% prefer white chocolate or approximately 1/3
7 0
2 years ago
Can somebody please help me and tell me how did you get the answer please thank you!!!
Aneli [31]

Answer:

10

Step-by-step explanation:

(6x-5)+(12x+5)=180

18x=180

x=10

7 0
3 years ago
Hi:) I need help with 11(a) , thanks!:))
Irina-Kira [14]

Answer:

18.95

Step-by-step explanation:

ln 2 x ln (4x) = 3

ln 4x = = 3 / ln 2

ln4x =  3 / 0.69315 = 4.3281

4x = e^4.328 = 75.80

x =  18.95.

7 0
3 years ago
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