Answer:
D. 3 hours
Step-by-step explanation:
Answer:
Well.
Step-by-step explanation:
If its 28 km for hour. A quarter of 28 is 7 so then 28+7=35 km.
Answer: The answer should be -0.5
Step-by-step explanation:
Answer:
21 minutes divided by 7 walls = 3 minutes per wall for 5 people.
Assuming each worker has the same exact productivity, one person would take 15 minutes to paint a single wall (3 minutes x 5 people to get the amount of time for 1 worker per wall).
15 minutes for one worker multiplied by 5 walls = 75 minutes for one worker. Divide 75 minutes by 3 people = 25 minutes to paint all 5 walls with 3 people.
Step-by-step explanation:
Answer:
Step-by-step explanation:
Expanding brackets.
Adding 2m and 6 to both sides.
Combining like terms.
Dividing both sides by 14.
