Alabrador retriever weighs 48kg. after a diet and exercise program the dog weighs 41kg. what is the percentage loss in weight.

Percentage loss in weight is 14.5833 %

Solution:

Given that Labrador retriever weighs 48 kg

After a diet and exercise program the dog weighs 41 kg

To find: percentage loss in weight

Steps to follow:

First: work out the difference (decrease) between the two numbers you are comparing. Then: divide the decrease by the original number and multiply the answer by 100

Here starting value = 48 kg and final value = 41 kg

Negative sign indicates percentage loss(decrease in weight)

Thus percentage loss in weight is 14.5833 %

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the revenue of the fitness center, y, is the product of two factors: the number of members and the fee paid by each member. there are 320 members now, but number of members goes down by 10 for each $5 increase in fees, so if x is the number of $5 price increases then members is equal to (320 - 10x). since the fee is currently $45, and the fee increases by $5 for every price bump x, the fee is given by (45 + 5x). so, revenue y is given by y = (320 - 10x)(45 + 5x).