Let’s go step by step and convert the given units as requested:
Convert 120 cm to meters:
We know:
\[
1 \, \text{m} = 100 \, \text{cm}
\]
So:
\[
120 \, \text{cm} = \frac{120}{100} \, \text{m} = 1.2 \, \text{m}
\]
2. Convert 2250 m to kilometers:
We know:
\[
1 \, \text{km} = 1000 \, \text{m}
\]
So:
\[
2250 \, \text{m} = \frac{2250}{1000} \, \text{km} = 2.25 \, \text{km}
\]
3. Convert 50 mm to kilometers:
We know:
\[
1 \, \text{m} = 1000 \, \text{mm} \quad \text{and} \quad 1 \, \text{km} = 1000 \, \text{m}
\]
So:
\[
50 \, \text{mm} = \frac{50}{1000} \, \text{m} = 0.05 \, \text{m}
\]
\[
0.05 \, \text{m} = \frac{0.05}{1000} \, \text{km} = 0.00005 \, \text{km}
\]
4. Convert 9500 m to centimeters:
We know:
\[
1 \, \text{m} = 100 \, \text{cm}
\]
So:
\[
9500 \, \text{m} = 9500 \times 100 \, \text{cm} = 950,000 \, \text{cm}
\]
5. Convert 150 cm to kilometers:
We know:
\[
1 \, \text{m} = 100 \, \text{cm} \quad \text{and} \quad 1 \, \text{km} = 1000 \, \text{m}
\]
So:
\[
150 \, \text{cm} = \frac{150}{100} \, \text{m} = 1.5 \, \text{m}
\]
\[
1.5 \, \text{m} = \frac{1.5}{1000} \, \text{km} = 0.0015 \, \text{km}
\]
6. Convert 175 mm to meters:
We know:
\[
1 \, \text{m} = 1000 \, \text{mm}
\]
So:
\[
175 \, \text{mm} = \frac{175}{1000} \, \text{m} = 0.175 \, \text{m}
\]
7. Distance from school to home and back:
It a's school is \(7 \, \text{km} + 300 \, \text{m}\) away from her home. Convert to kilometers:
\[
300 \, \text{m} = \frac{300}{1000} \, \text{km} = 0.3 \, \text{km}
\]
So, one-way distance = \(7 \, \text{km} + 0.3 \, \text{km} = 7.3 \, \text{km}\).
Round trip distance:
\[
7.3 \times 2 = 14.6 \, \text{km}
\]
8. Distance from village to city:
Tu’s village is \(46 \, \text{km}\) from the city. If she goes to the city and comes back, the total distance is:
\[
46 \times 2 = 92 \, \text{km}
\]
