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zlopas [31]
3 years ago
11

I need help on 21 . Please

Mathematics
1 answer:
kupik [55]3 years ago
4 0

Answer:

Air travels 6,920 meters in 20 seconds.

Step-by-step explanation:

If in one second air travels 346 meters, and you want to find out how many meters air travels in 20 seconds, then just multiply 346 by 20.

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Translate the sentence into an equation. Five more than the product of a number and 9 is equal to 6
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The first thing we will do for this case is to define the following variable:
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 Answer:
 
An equation for the sentence is:
 
9x + 5 = 6
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4 years ago
Is this true or false need answer asap
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Step-by-Step Explanation:

=> 2x + 3y = -7 (Eq. 1)
=> -x = 2y (Eq. 2)
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Substitute values of ‘x’ and ‘y’ in Eq. 1 :-

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