Answered

Real numbers
5.
The average weight of an adult one-horned male rhinoceros found in
about 21 quintal.
a) Write the average weight of rhinoceros in kilograms (kg)
b) Express the weight in kilograms in scientific notation of number.
c) Convert the weight in gram and express it in scientific



Answer :

GinnyAnswer
Sure, let's work through this step by step.

### Step-by-Step Solution:

#### Given:
The average weight of an adult one-horned male rhinoceros is 21 quintals.

#### Part (a): Write the average weight of the rhinoceros in kilograms (kg).

1 quintal equals 100 kilograms. Therefore, to convert the weight from quintals to kilograms:
[tex]\[ \text{Weight in kilograms} = 21 \text{ quintals} \times 100 \text{ kilograms/quintal} \][/tex]
[tex]\[ \text{Weight in kilograms} = 2100 \text{ kilograms} \][/tex]

So, the average weight of the rhinoceros is 2100 kilograms.

#### Part (b): Express the weight in kilograms in scientific notation.

To express the weight in scientific notation:
[tex]\[ 2100 \text{ kg} = 2.10 \times 10^3 \][/tex]

So, the average weight of the rhinoceros in scientific notation is [tex]\(2.10 \times 10^3\)[/tex] kilograms.

#### Part (c): Convert the weight into grams and express it in scientific notation.

1 kilogram equals 1000 grams. Therefore, to convert the weight from kilograms to grams:
[tex]\[ \text{Weight in grams} = 2100 \text{ kilograms} \times 1000 \text{ grams/kilogram} \][/tex]
[tex]\[ \text{Weight in grams} = 2,100,000 \text{ grams} \][/tex]

To express this weight in scientific notation:
[tex]\[ 2,100,000 \text{ grams} = 2.10 \times 10^6 \][/tex]

So, the average weight of the rhinoceros in grams in scientific notation is [tex]\(2.10 \times 10^6\)[/tex] grams.

### Summary:
- The average weight of the rhinoceros in kilograms is 2100 kg.
- The average weight in kilograms in scientific notation is [tex]\(2.10 \times 10^3\)[/tex] kg.
- The average weight in grams in scientific notation is [tex]\(2.10 \times 10^6\)[/tex] grams.

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