First, we need to determine how many 15-minute intervals are in 3 hours. There are 4 15-minute intervals in an hour (60 minutes / 15 minutes = 4), so in 3 hours, there are 12 intervals (4 intervals * 3 hours = 12 intervals).

Next, we multiply the number of intervals by the amount of carbon used in each interval. The scientist uses 10 grams of carbon every 15 minutes, so in 12 intervals, they would use 120 grams (10 grams * 12 intervals = 120 grams).

Finally, we need to convert grams to kilograms, since the answer choices are in kilograms. There are 1000 grams in a kilogram, so 120 grams is equal to 0.12 kilograms (120 grams / 1000 = 0.12 kilograms).

So, the scientist used 0.12 kilograms of carbon in total. The correct answer is C) 0.12.

Question

First, we need to determine how many 15-minute intervals are in 3 hours. There are 4 15-minute intervals in an hour (60 minutes / 15 minutes = 4), so in 3 hours, there are 12 intervals (4 intervals * 3 hours = 12 intervals).

Next, we multiply the number of intervals by the amount of carbon used in each interval. The scientist uses 10 grams of carbon every 15 minutes, so in 12 intervals, they would use 120 grams (10 grams * 12 intervals = 120 grams).

Finally, we need to convert grams to kilograms, since the answer choices are in kilograms. There are 1000 grams in a kilogram, so 120 grams is equal to 0.12 kilograms (120 grams / 1000 = 0.12 kilograms).

So, the scientist used 0.12 kilograms of carbon in total. The correct answer is C) 0.12.

Knowee AI · Accepted Answer

First, we need to determine how many 15-minute intervals are in 3 hours. There are 4 15-minute intervals in an hour (60 minutes / 15 minutes = 4), so in 3 hours, there are 12 intervals (4 intervals * 3 hours = 12 intervals).

Next, we multiply the number of intervals by the amount of carbon used in each interval. The scientist uses 10 grams of carbon every 15 minutes, so in 12 intervals, they would use 120 grams (10 grams * 12 intervals = 120 grams).

Finally, we need to convert grams to kilograms, since the answer choices are in kilograms. There are 1000 grams in a kilogram, so 120 grams is equal to 0.12 kilograms (120 grams / 1000 = 0.12 kilograms).

So, the scientist used 0.12 kilograms of carbon in total. The correct answer is C) 0.12.

A scientist uses 10 grams of carbon every 15 minutes during an experiment.If the experiment lasted 3 hours, how many total kilograms of carbon did they use?A)120B)1,200C)0.12D)0.012

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