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Anettt [7]
2 years ago
5

Nine seconds elapsed from the time Mark saw the lightning until he heard the thunder. The lightning was about how many kilometer

s from Mark? (Sound travels about 331 meters per second in air.)
Mathematics
1 answer:
Alex2 years ago
7 0
The lighting was about 2.979 kilometers away from Mark
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5x+2y=-3;x+5y=4<br>plz answer me​
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Answer:

x = -1 and y = 1

Step-by-step explanation:

5x + 2y = -3 . . . . . . . (i)

x + 5y = 4 . . . . . . . (ii)

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x + 5y = 4

x = 4 - 5y

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5(4 - 5y) + 2y = -3

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3 years ago
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5. Natalie has a pound bag of 1/8 pound bag of gummy worms, a 1/2 pound bag of twizzlers, and a 2/3 pound bag of chocolate. How
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Step-by-step explanation:

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5. Now that the denominators are the same for all the fractions, add all the numerators together.

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ANSWER: Natalie had 31/24 pounds of candy in all

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