Natalie draw to the ferry office and back. The trip took five hours and the trip back took four hours. She average 80 km/h on th
e return trip. Find the average speed of the trip there.
1 answer:
Draw? Didn't Natalie DRIVE to the office and then back?
Average speed = total distance divided by total time.
Total distance = speed times time = 80 km/hr times 4 hours, or 320 km.
Then, back to the main question:
Total distance = 2(320 km)
Total time elapsed = 9 hrs
640 km
Average speed = ------------- = 71.1 km/hr
9 hrs
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Answer:
A
Step-by-step explanation:
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A = (2x - 5)(3x + 3) ← expand using FOIL
= 6x² + 6x - 15x - 15 ← collect like terms
= 6x² - 9x - 15 → A
Are u in 5th grade? Im learning the same thing LOL
Answer:
40cm
Step-by-step explanation:
Given data
Length= 15cm
Width=30cm
Volume= 18liters
1000cm^3= 18liters
18000cm^3= 18liters
We know that volume
Volume= L*W*h
18000= 15*30*h
18000=450h
h= 18000/450
h= 40cm
Hence the height is 40cm
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