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A moderately active 140-pound person uses 2100 calories per day to maintain that body weight. How many calories per day are necessary to maintain a moderately active 145-pound person?

Answer :

Final answer:

A moderately active 145-pound person would need approximately 2205 calories per day to maintain their current body weight, according to a direct calorie-to-weight ratio.

Explanation:

To answer this question, first, you have to understand that the number of calories a person needs to maintain their body weight is in direct proportion to their weight. If a 140-pound person needs 2100 calories, then a 145 pound person would need more calories proportionally.

Let's set up a proportion to solve this. If 140 pounds is to 2100 calories, then 145 pounds is to how many calories? We can set it up like this:

140/2100 = 145/X

Then we cross multiply and solve for X:

140*X = 2100*145

X = (2100*145) / 140

The answer is about 2205 calories. So a 145-pound person would need approximately 2205 calories per day to maintain that body weight.

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Rewritten by : Barada

Answer:

2,175 calories

Step-by-step explanation:

140 pound person will use 2100 calories per day

145 pounds person will use x calories per day

Find x

Pounds : calories

140 : 2100 = 145 : x

140/2100 = 145/x

Cross product

140 * x = 2100 * 145

140x = 304,500

Divide both sides by 140

x = 304,500 / 140

= 2,175

Therefore,

145 pounds person will use 2175 calories per day