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yulyashka [42]
3 years ago
5

F(x)=2x+3 find x=9 explain how you got the answer please help me I need the answer today

Mathematics
1 answer:
hram777 [196]3 years ago
6 0
You would fill in 9 for x so your equation would be 2(9)+3 and you would then get 21. Therefore the answer is f(x)=21
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ankoles [38]

Answer:

The answer is 47

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3 years ago
The train ride at the zoo covers a distance of 7 and 5/6 miles in 4/5 of an hour. How many miles per hour does the train go?
Kamila [148]

The speed of the train in miles per hour which is the ratio of the total distance covered and the total time taken to cover the distance is 9.79 mph

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Recall :

Speed in miles per hour = Distance covered / time taken

  • The speed of the train = 7.833333 ÷ 0.8 = 9.7916

  • The speed of the train in miles per hour = 9.79 mph

Therefore, the speed of the train in miles per hour as calculated from the distance covered by the train over a certain period of time is 9.79 mph

Learn more : brainly.com/question/18904995

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3 years ago
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dusya [7]

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7 0
3 years ago
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irga5000 [103]

Answer:

D.1/5, 2/10, 3/15

D.4/13

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Step-by-step explanation:

Write three ratios equal to 7/35.

7/35

divide by 7 on top and bottom

1/5

1/5 * 2/2 = 2/10

1/5 * 3/3 = 3/15


Jeanne/Jake = 12/39

divide top and bottom by 3

4/13


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35.3333333 km/hr

to the nearest hundredth

35.33 km/hr

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miss Akunina [59]
It would decrease because you are multiplying by a decimal.
3 0
3 years ago
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