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Ket [755]
3 years ago
8

A race is 10 kilometers long. Markers will be placed at the beginning and end of the race course and at each 500 meter mark. How

many markers are needed to mark the course for the race.
Mathematics
1 answer:
spayn [35]3 years ago
3 0
The answer is 20. You use 20 markers for it all.
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Which expression is equivalent to 12(6x+12)? A. 6x+14 B. 12x+1 C. 3x+12 D. 3x+14 please answer
insens350 [35]

Step-by-step explanation:

B.12x + 1

if it helps brainiest lol

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Reuben has scores of 70,75,83, and 80 on four spanish quizzes. what score must he get on the next quiz to achieve an average of
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X - the score he must get

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Chen bought a 20-foot chain for $36.50. What is the unit rate of price per foot?
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3 0
2 years ago
Explain number 2 & 3 please
VLD [36.1K]
1. 3x - 2y = 0 => y = 3/2x
4x + 2y = 14<=> 4x + 2*(3/2x) = 14<=> 7x = 14<=> x = 2 & y = 3
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3.3x - 2y = 1=> x = (1+2y)/3
8x + 3y = 2<=> 8*(1+2y)/3 + 3y = 2<=> 8*(1+2y)/3 - 2 = -3y<=> 3*(8*(1+2y)/3 - 2) = -3*(3y)<=> 8*(1+2y) - 6 = -9y<=> 8 + 16y - 6 = -9y<=> 2 = -25y<=> y = -2/25 & x = 7/25
7 0
3 years ago
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