I am thinking your answer is 78 students. You do 1/5 times 390. And I think the the part about the dog is just extra information.
Answer:
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Here is the solution based on the given situation above.
Given: 450 kg = weight limit of the elevator
750 kg = current weight of the group of passengers
? = number of passengers who weigh 70 kgs that need to get off the elevator
So to get the answer, first we need to deduct 450kg from 750 kgs to get the excess weight. So 750 - 450 is 300kgs. Next, we divide 300 by 70kgs to get the number of passengers that need to get off so 300/70 is 4.3. Therefore, there should be 4 passengers who weigh 70 kilograms that need to get off the elevator.
Answer:
x = 11.5h+.8q
Step-by-step explanation:
x = the total salary made in a day
11.5 represents the 11.5 he earns per hour. You then add this to the 80 cents (.8) he makes per product (q)
