Question

It is found that 8 lbs will reduce to 4 lbs in 4.6 hr. What is the rate of reduction in lbs/hr?

1) 0.87 lbs/hr
2) 1.74 lbs/hr
3) 1.74 lbs
4) 0.87 lbs

Answer 1

The correct rate of reduction is found by dividing the weight loss (4 lbs) by the time (4.6 hr), resulting in approximately 0.87 lbs/hr, which corresponds to option 1.

Step-by-step explanation:

The question involves finding the rate of reduction in pounds per hour (lbs/hr). To calculate this, we need to determine how much weight is lost over a period of time. In this case, 8 lbs reduce to 4 lbs over 4.6 hours. The rate of reduction is the weight loss divided by the time it took for that loss to occur, which can be calculated as (8 lbs - 4 lbs) / 4.6 hr = 4 lbs / 4.6 hr.

The correct rate of reduction is therefore 4 lbs divided by 4.6 hr, which equals approximately 0.87 lbs/hr. This is option 1 on the list. None of the other options reflect the correct rate of reduction. Conversion of units is not necessary here since both the initial and final weights are already in pounds.