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adoni [48]
3 years ago
12

A test driver has to drive a car on a 1-mile track for two rounds in a way, that his average speed is 60 mph. On his first round

his average speed is 40 mph. How fast does he need to drive, to get the right speed average?
Mathematics
1 answer:
Darya [45]3 years ago
3 0

(40+x)/2=60

40 +x = 120

x = 80


check :

40+80 = 120

120/2 = 60

 so his second round needs to be 80 mph

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Answer:

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Step-by-step explanation:

3√10(y^2√4 + √8y)

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Alenkasestr [34]

Q: You are shot out of a cannon at the fair. The equation y=-1/5 * (x+2) (x-28) models your flight path, where y is the height above the ground and x is the horizontal distance. Which of the following statements in the comments are true?

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prohojiy [21]

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